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Cover of Big Bright Feelings: Ruby's Worry
Picture · ages 3–7

Big Bright Feelings: Ruby's Worry

Written and illustrated by Tom Percival

Book 2 of 10 in Big Bright FeelingsView the full series

In school curriculum
Endlessly rereadable

Ruby has a worry, and the bigger it grows, the less she can enjoy anything. Tom Percival makes anxiety visible as a physical, growing thing, and shows that talking makes it smaller. The go-to recommendation when a child 'can't stop thinking about it.'

  • Best for3–7
  • FormatPicture
  • Length32 pp
  • Read aloud~6 min
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The vibe

What it’s like.

Style

  • Lyrical
  • Conversational
  • Repetitive

Tone

  • Warm
  • Gentle
  • Heartwarming
  • Thought provoking
  • Cosy

Themes

On the pageworry, talking, emotional support, school, friend

Experience meters

Energy2/ 5
Humour1/ 5
Scariness1/ 5
Peril1/ 5
Wonder3/ 5
Cosiness4/ 5
Emotional intensity3/ 5
Conceptual intensity3/ 5

What’s it about?

The story.

Ruby is a happy child. Then one day she finds a worry. It's small at first, so small she can almost ignore it. But it follows her everywhere, and grows, and the bigger it gets the less she can enjoy anything at all. Ruby looks at the other children and they all seem fine. Nobody else has a worry like this. Tom Percival makes the worry visible: a yellow scribble that begins small and expands across the pages until it is enormous, pressing in from every side. The resolution comes when Ruby finds another child who also has a worry, and when they share them, both worries shrink. It is the mechanism of every therapeutic conversation about anxiety, rendered in picture-book form without losing any of its truth. One of the most consistently recommended books for children who struggle with worry: precise about the experience, gentle in the resolution, and entirely without condescension. The book parents reach for when a child says 'I can't stop thinking about it.' The breakout title of the Big Bright Feelings series, and its best-known entry point.

Fit check

Right for your child?

Where it lands by age

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 3–7
  • Read aloud · 3–8
  • Independent · 5–7

Prose load

Light

Visual support

Very high

Reluctant-reader friendly

Workable

Read-aloud quality

Excellent

Works well for

  • Reading aloud
  • Bedtime
  • Reading together
Low sensitivityNo content warnings

Nothing in the book is likely to concern most parents. Safe to recommend without preview.

Bedtime suitability

4 / 5 · Bedtime-friendly

Sensitive-child

5 / 5 · Good fit

Graphic intensity

1 / 5 · None

Best for

  • Anxiety support
  • Discussion starter
  • Gift book
  • School themes
  • Pshe resource

Avoid if

No common reasons to avoid this one — a rare clean sweep on the sensitivity flags.

Particularly good for children who are…

  • Anxiety and worry
  • Low self esteem
  • Nightmares or fears
  • Starting school

In the classroom

How it works in school.

Tom Percival's flagship emotional-literacy series — each picture book explores a big feeling (worry, anger, shyness, jealousy and more), making them the go-to PSHE read-alouds.

Classroom role

  • Discussion and empathy
  • Read aloud

Good for teaching

  • Theme

A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.

Why it lands

Why they love it.

Why kids love it

Children recognise the relief of seeing a worry shrink the moment it's spoken aloud. The book gives small readers permission to admit something they didn't quite know they were allowed to admit — which is exactly what makes the yellow blob, and Ruby finally talking about it, stay with them for years.

  • Being understood finally
  • Friendship and belonging

Why parents love it

The conversation-starter you didn't have to start. Hand it to an anxious child, read it together, and the book does the hardest part for you — naming the feeling, showing what happens when you say it out loud. The book parents reach for the first time a child says 'I can't stop thinking about it.'

  • Conversation starter
  • Bedtime appropriate
  • Quick to read
  • Beautiful illustrations

In the series

Big Bright Feelings.

10 books · open the series →

About the author & illustrator

Tom Percival.

TP

Tom Percival

Writer & illustrator · United Kingdom

Tom Percival is a British author-illustrator born in Shropshire, best known for the Big Bright Feelings picture-book series, Ruby's Worry, Perfectly Norman, Ravi's Roar, Meesha Makes Friends, The Invisible, which gently externalises children's emotional experiences through visual metaphor. Worry is a small yellow shape that grows larger when ignored; Norman's wings are a bright feathered thing he tries to hide. The books have become a fixture of PSHE / SEL reading in UK schools and parent-led conversations about feelings. Percival also writes the Dream Team chapter-book series and other picture books. His visual style is bright, contemporary and inclusive, and his books are well-suited to children processing anxiety, difference, or big emotions.

More from Tom Percival

If you liked this

Three ways out of this book.

Come into this from…

Easier or preparing reads — perfect lead-ins.

Where to go next…

Escalation reads — a step up in scale, silliness, or stakes.

Where you’ll find it

On these reading lists.

Buy or borrow

Pick up a copy.

  • Bookshop.org
  • Waterstones
  • Amazon UK
  • Hive
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Last reviewed · April 2026Suggest a correctionHow we recommend

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