Stories for Fears and Big Changes: Evidence

In short

Bibliotherapy uses books to help children with emotional difficulties. A systematic review of eight randomised trials found small to moderate benefits for anxiety, behaviour and prosocial outcomes in children aged 5 to 16 (Montgomery & Maunders, 2015).
The strongest evidence is for structured CBT programmes written for parents of anxious children, especially with brief professional guidance (Rapee et al., 2006); (Thirlwall et al., 2013).
For fear of the dark, parent-delivered programmes combining a story with games and gradual practice reduced fears in randomised trials (Santacruz et al., 2006); (Lewis et al., 2021).
Talking about feelings after a story, not the story alone, improved children's emotion understanding and empathy (Ornaghi et al., 2014).
For grief, a new sibling, separation or moving house, evidence is thin and mostly descriptive; many anxiety picture books never show the character facing the fear (Crane et al., 2025).

Background: what bibliotherapy is

Bibliotherapy means using books to help with emotional or behavioural difficulties. Two broad kinds appear in the research. Self-help bibliotherapy puts a structured treatment into written form, usually based on cognitive behavioural therapy (CBT: an approach that links thoughts, feelings and behaviour and, for fears, uses gradual, planned practice with the feared situation, called exposure). For young children these materials are usually written for parents. Creative bibliotherapy uses fiction or poetry relevant to a child's situation, read and discussed with the child (Montgomery & Maunders, 2015). Writers also distinguish clinical bibliotherapy, used by therapists, from developmental bibliotherapy, used by teachers, librarians and parents to help children through ordinary challenges.

Many families reach for a book at these moments. Night-time fears, for example, are a normal and usually passing part of development, but for some children they cause considerable distress (Lewis et al., 2015). A new baby, a house move, a parental separation or a death can unsettle a child for months. The market is large: one review screened 1,640 children's books and found 191 picture books about anxiety alone (Crane et al., 2025). This review asks what research shows about stories for these moments, and where it is silent.

How the research has been done

Randomised controlled trials (RCTs). Children are allocated by chance to a story-based programme or a comparison, often a waiting list (families who receive the programme later). This is the strongest design for showing cause and effect.
Multiple-baseline single-case designs. A few children are measured repeatedly, and each starts the programme after a different, randomly chosen delay. If improvement begins only when the programme does, each time, that suggests an effect.
Classroom and nursery studies. Teachers read stories to groups, then compare follow-up activities such as a conversation about feelings or drawing.
Content analyses describe what books contain, not whether they help.

Outcomes range from diagnostic interviews and parent ratings of fear to nights spent in the child's own bed, and tests of emotion understanding (knowing what causes feelings and how they can be hidden or mixed) and theory of mind (understanding that other people have thoughts and beliefs different from one's own). Effect sizes such as d or g express differences in standard units: about 0.2 is small, 0.5 medium and 0.8 large (see our glossary of research terms).

What the reviews and trials found

Reviews of bibliotherapy for children

A systematic review of creative bibliotherapy for children aged 5 to 16 included only randomised trials, and found eight. Effects were small to moderate and positive for internalising problems such as anxiety and depression (δ 0.48 to 1.28), externalising problems such as aggression (δ 0.53 to 1.09) and prosocial behaviour (δ 0 to 1.2). The studies were too different to pool, no single model of creative bibliotherapy emerged, and all interventions reflected CBT mechanisms to some degree (Montgomery & Maunders, 2015).

A 2026 review of teacher-delivered creative bibliotherapy in schools found 23 studies, 12 of them student dissertations. Thirteen reported benefits, but few were well protected against bias; the authors found promising indications but no strong evidence (Redman et al., 2026). A meta-analysis of eight randomised trials (979 participants) of bibliotherapy for depression and anxiety in under-18s found a moderate benefit over control conditions (standardised mean difference −0.52, 95% CI −0.89 to −0.15), clearest for adolescents with depression and less robust for anxiety in children (Yuan et al., 2018).

The emotional tone of the reading may matter. In a residential home in Israel, 79 children and adolescents received cognitive bibliotherapy, affective bibliotherapy or no treatment. Both reduced social anxiety compared with controls, but only affective bibliotherapy reduced adjustment problems (Betzalel & Shechtman, 2010).

Written CBT programmes for parents of anxious children

The strongest trials test CBT programmes for parents, not storybooks. In an Australian trial with 267 children aged 6 to 12 with diagnosed anxiety disorders, a parent-read version of a standard CBT programme, with no therapist contact, helped compared with a waiting list: around 15% more children were free of an anxiety diagnosis at 12 and 24 weeks. It was less effective than group therapy with a therapist (Rapee et al., 2006).

In England, a trial with 194 anxious children compared guided parent-delivered CBT (a guided self-help approach in which parents learn and apply CBT strategies with brief therapist support) with a waiting list. With four face-to-face and four telephone sessions, 50% of children had recovered from their main anxiety diagnosis after treatment, against 25% on the waiting list; a shorter version (39%) did not differ significantly from the waiting list (Thirlwall et al., 2013). A later NHS trial with 136 children aged 5 to 12 found no significant difference between brief guided parent-delivered CBT and solution-focused brief therapy (59% versus 69% much improved), with CBT likely to be cost-effective (Creswell et al., 2017). The lesson is that written, parent-led formats can carry an effective treatment, and that more guidance seemed to help.

Night-time fears and fear of the dark

Night-time fears are the clearest case of a story-based programme for young children tested in trials.

In Spain, 78 children aged 4 to 8 with fear of the dark were randomly assigned to one of two parent-delivered, play-based programmes (bibliotherapy with games, or a programme called emotive performances) or to no treatment. Both programmes produced large improvements (d above 1.0) that grew at 12-month follow-up (Santacruz et al., 2006).
In a US multiple-baseline study, parents of nine children aged 5 to 7 with persistent night-time fears and specific phobia diagnoses read a therapeutic book with them over four weeks and did its activities. Eight of the nine improved enough to count as a meaningful change in anxiety severity, and children slept in their own beds more often (Lewis et al., 2015).
In Brazil, 68 children aged 4 to 6 who co-slept with parents because of night-time fears were randomised to CBT-based bibliotherapy plus a doll, or a waiting list. The programme was superior, with gains maintained at three months (Rafihi-Ferreira et al., 2018).
A Hungarian version of the book used in the US study, delivered by parents over five weeks to 73 children aged 3 to 8, reduced night-time fears more than a waiting list, and children who spent more time on its exposure and relaxation games showed larger reductions in separation anxiety and problem night-time behaviour (Kopcsó et al., 2022).
In Israel, 104 children aged 4 to 6 received a puppy doll to look after, or one presented with a story that it would protect them. Both reduced night-time fears more than a waiting list, with gains at six months (Kushnir & Sadeh, 2012).

A systematic review of 25 years of research identified nine randomised trials and three multiple-baseline studies and concluded that behavioural and CBT strategies significantly reduce children's night-time fears (Lewis et al., 2021). The same book-plus-parent approach has been piloted for fear of dogs in seven children aged 4 to 7, with weekly brief therapist calls (Radtke et al., 2023). The common ingredient is not the story alone: parents are trained or guided in several of these programmes, and children practise facing the fear in small steps, often through games.

Stories, feelings and understanding others

Stories are about characters' thoughts and feelings, so researchers have asked whether they build social understanding. A review of this work found supportive correlational, experimental and brain-imaging evidence, alongside real limitations and some puzzling results (Mar, 2018). In a correlational study of 55 children aged 4 to 6, greater exposure to storybooks predicted better theory of mind after allowing for age, vocabulary and family income; exposure to children's films did too, but exposure to children's television did not (Mar et al., 2010). A meta-analysis of 14 experiments found that reading fiction causes a small improvement in social-cognitive performance (g = 0.15 to 0.16) (Dodell-Feder & Tamir, 2018), though it was not designed to answer questions about picture books shared with young children.

Training studies are more encouraging, and they point to conversation as the active ingredient. A meta-analysis of 19 studies (749 children) found that emotion-understanding training improved external aspects such as recognising expressions and causes (g = 0.62), mental aspects such as emotions that depend on desires and beliefs (g = 0.31), and reflective aspects such as regulating and mixed emotions (g = 0.64) (Sprung et al., 2015). A related meta-analysis of 45 studies (1,529 children) found theory-of-mind training effective (g = 0.75) (Hofmann et al., 2016).

In an Italian study with 110 children averaging 7 years old, all children heard illustrated stories about emotional situations over two months. Those who then talked about the emotions outperformed those who drew a picture about the story on emotion understanding, theory of mind and empathy, and the gains in emotion understanding lasted six months (Ornaghi et al., 2014). Small-group conversations about emotions also improved emotion understanding and prosocial behaviour among 2- and 3-year-olds at nursery, with older toddlers gaining more (Grazzani et al., 2016). In a study of 95 toddlers, stories followed by emotion talk increased emotion knowledge and prosocial behaviour but had no specific effect on aggression (Ornaghi et al., 2017). With 142 toddlers, talk about inner states after prosocial stories beat both talk about concrete actions and free play (Brazzelli et al., 2021). Theoretical work suggests stories may build cognitive empathy most when children identify with characters unlike themselves (Kucirkova, 2019), and that theory of mind helps children understand stories (Dore et al., 2018).

Stories for life events: where evidence is thin

Grief. Reviews of children's books about death are content analyses, not outcome studies. Of 210 storybooks published from 1995 to 2015, most concerned a grandparent or a pet; 75% used the words death or dying while the rest used euphemisms, and fewer than a quarter offered readers tools for addressing death (Arruda-Colli et al., 2017). A review of 56 books for 7- to 11-year-olds found that they supported understanding and coping but had limitations, and advised adults to read alongside the child to discuss what the books leave out (Martínez-Caballero et al., 2023). Trials of bereavement support (not of books) show modest effects overall. A meta-analysis of 13 controlled studies found child grief interventions less effective than other psychotherapies, though better when timely and when children were selected by specific criteria (Currier et al., 2007). A 2024 meta-analysis of 39 studies found a small controlled effect of preventive programmes on grief (g = 0.18) and larger effects, mostly from uncontrolled studies, when support targeted children with high distress (Hanauer et al., 2024). We found no trial testing a storybook alone for bereaved children.

A new sibling. In a US study following 241 families, firstborn children who attended sibling preparation classes adjusted much like those who did not, apart from one measure, avoidance of the baby (Beyers-Carlson & Volling, 2017). We found no trial of picture books for this transition.

Separation, divorce and moving house. Our searches found book lists and descriptive articles, but no controlled study of stories for these changes that we could verify.

Hospital and medical procedures. Preparation for procedures is reviewed separately in our article on medical and dental preparation.

What books actually model. In 191 picture books about anxiety, characters modelled on average only 2.4 of eight evidence-based coping elements. More than half of the books with an anxious character never showed the character facing the fear, and only 7% showed rewards or praise. Books written by mental health professionals were more likely to show children reflecting after facing a fear (Crane et al., 2025).

Study	Design	Key finding
(Montgomery & Maunders, 2015)	Systematic review, 8 RCTs, ages 5–16	Small to moderate benefits; interventions reflected CBT mechanisms
(Rapee et al., 2006)	RCT, 267 anxious children aged 6–12	Parent-read CBT beat waiting list; less effective than therapist-led groups
(Thirlwall et al., 2013)	RCT, 194 anxious children	Guided parent-delivered CBT: 50% recovered vs 25% on waiting list
(Santacruz et al., 2006)	RCT, 78 children aged 4–8	Story-and-games and emotive performances reduced fear of the dark (d above 1.0)
(Rafihi-Ferreira et al., 2018)	RCT, 68 children aged 4–6	CBT bibliotherapy plus doll reduced night-time fears and co-sleeping problems
(Ornaghi et al., 2014)	Controlled study, 110 children around age 7	Stories plus emotion talk beat stories plus drawing
(Crane et al., 2025)	Content analysis, 191 books	Most anxiety picture books model few coping skills

For whom and under what conditions

What seems to make stories work

The tested programmes share a handful of active ingredients, and the story is only one of them.

Information. Explaining what is happening and that the feeling is common (sometimes called psychoeducation and normalising).
A model who copes. A character who feels the fear and takes small steps anyway, mirroring the CBT techniques found in effective programmes (Montgomery & Maunders, 2015).
Practice. Turning the story into graded real-world steps; in one study, more time on exposure and relaxation games went with greater improvement (Kopcsó et al., 2022).
Talk about feelings. Conversation after the story, not the story alone, produced gains in emotion understanding and prosocial behaviour (Ornaghi et al., 2014); (Brazzelli et al., 2021).
Emotional engagement. Identifying with characters' feelings may matter more than a purely instructional story (Betzalel & Shechtman, 2010).
A coached parent. Programmes that trained or guided parents produced the clearest effects (Santacruz et al., 2006); (Thirlwall et al., 2013).

Who benefits

Children with marked difficulties. In bereavement research, support targeted at children with high distress shows larger gains than universal programmes (Hanauer et al., 2024); (Currier et al., 2007).
Age. Night-time fear programmes have been tested at ages 3 to 8; in one emotion-talk study, older toddlers gained more (Grazzani et al., 2016).
Severity and type of problem. Self-help reading seems clearer for adolescent depression than for childhood anxiety (Yuan et al., 2018).

What this means in practice

Choose books where the character faces the fear. Many do not; look for small brave steps (Crane et al., 2025).
Read together, then talk. Ask how the character felt, why, and what helped. This conversation is where the evidence is strongest (Ornaghi et al., 2014).
Turn the story into steps. For fear of the dark, games and gradual practice were central to the programmes that worked (Santacruz et al., 2006).
Praise brave tries. Few books show this, but rewards and praise are one of the building blocks of evidence-based treatment for childhood anxiety (Crane et al., 2025).
For grief, choose deliberately and stay close. Books differ in whether they use plain words such as death and dying and in whether they offer ways to cope (Arruda-Colli et al., 2017).
For a new baby, keep expectations modest. In one large study, preparation classes made little difference to firstborns' adjustment (Beyers-Carlson & Volling, 2017).

When to get help

A story is preparation and comfort, not treatment. Talk to your GP, health visitor, school nurse or a children's mental health service if:

a fear lasts for months, keeps getting worse or stops your child doing ordinary things such as sleeping alone, going to school or seeing friends. Structured, parent-led CBT has good evidence for child anxiety (Thirlwall et al., 2013);
after a death, your child's grief stays intense or interferes with daily life. Targeted support helps most when distress is high (Hanauer et al., 2024);
your child has been through something frightening, such as an accident, violence or a sudden loss, and has nightmares, flashbacks or strong avoidance weeks later;
you are worried about your child's mood, safety, eating or sleep.

Several features of the tested programmes plausibly carry over to a short story or cartoon: plain information about what will happen, a character who feels worried and copes in small steps, a calm and explicit ending, and prompts for an adult to talk about feelings and plan a first real step. Cala Luna's free social stories aim to include these elements, following the wider evidence on social stories, video modelling and screen media design.

Much does not carry over. The trials tested multi-week programmes in which trained parents combined a book with games, gradual practice and rewards; a single story or two-minute cartoon is a far smaller dose. Most life-event books have never been tested at all. And none of these studies tested Cala Luna's stories or cartoons. They may help a child understand and talk about a change; whether they reduce fear or distress is unknown.

Limits of the evidence

Trials are few and small, and many reviewed studies are unpublished dissertations or poorly protected against bias (Redman et al., 2026).
Most outcomes are reported by parents who know their child received the programme.
Waiting-list controls cannot separate the programme from attention, expectation or natural recovery; night-time fears often fade with time anyway (Lewis et al., 2015).
Several night-time fear trials used books written by members of the research team.
Evidence for new siblings, separation, moving house and grief books is almost entirely descriptive.
Emotion-understanding studies measure test performance, not coping with real events.

Open questions for research

In a randomised trial, does a single story about a specific change (a new baby, a move) reduce distress or behaviour problems compared with usual preparation?
How much of the effect of night-time fear programmes comes from the story itself, and how much from games, rewards and parent coaching?
Does adding a short guided conversation to a story about a change produce the gains seen in emotion-talk studies?
Are picture books that model exposure and praise more effective than typical books that only describe worry?
For bereaved children, does a carefully chosen book read with an adult help, harm or make no difference compared with support without a book?
Do animated stories work like read-aloud ones for these moments, or differently?

Frequently asked questions

Does bibliotherapy work for children?

Reviews of randomised trials suggest small to moderate benefits, and the clearest evidence is for structured CBT programmes written for parents of anxious children. Studies are few and varied, so results are promising rather than certain.

Can a book help my child's fear of the dark?

Several trials found that parent-delivered programmes combining a story with games and gradual practice reduced night-time fears in children aged about 3 to 8. The story worked as part of a programme, not on its own.

Are picture books about grief or divorce helpful?

They can help start a conversation, but they have rarely been tested. Reviews of grief books describe their content rather than their effects, so choose carefully and read with your child.

When should a child's fear or grief be seen by a professional?

When it lasts for months, keeps getting worse, stops ordinary life such as sleep or school, or follows a frightening event with nightmares or strong avoidance. Your GP or health visitor is a good first step.

How this review was prepared

This is a narrative evidence review, not a systematic review, and it has not been peer reviewed. We searched PubMed, Crossref and the wider web (including ERIC, Google Scholar-style searches and, for AI, arXiv and the ACM Digital Library), and cross-checked for missed studies with Perplexity, up to 24 October 2026. Systematic reviews, meta-analyses and randomised trials were prioritised, and null and negative results are reported. Literature searching and drafting were assisted by AI (Anthropic's Claude and Perplexity). Every reference was matched to its DOI, Crossref or PubMed record, and every number to the abstract or full text of its source; where only a secondary summary was available, the text says so. Edited by Oleksandr Prykhodko. Read our full editorial standards.

Conflict of interest

Cala Luna publishes free social stories and sells personalised social cartoons and songs. None of the studies cited here evaluated Cala Luna's materials, and Cala Luna has no funding from, or connection to, any author or organisation cited. This review is information, not medical, psychological or educational advice.

Cite this review

Cala Luna Research. (2026). Stories for fears and big changes: what bibliotherapy research shows (O. Prykhodko, Ed.). Cala Luna. https://calalunakids.com/research/stories-for-big-changes/ (last reviewed 24 October 2026)

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Spotted an error, or know a study we should add? Email hello@calalunakids.com. Every study we draw on is in the research library; research terms are explained in our methods glossary.

Stories for fears and big changes: what bibliotherapy research shows