Invisible Things Book
Last updated: March 2026
The Invisible Things book by Andy J. Pizza and Sophie Miller is a New York Times bestselling picture book that helps children (and adults) explore the feelings, senses, and hidden forces that shape our everyday lives. It's published by Chronicle Books, reviewed by a mental health professional, and available in the UK from £13. Below you'll find a summary of what makes this book special and where to buy it.
What is the Invisible Things book?
Invisible Things is a beautifully illustrated 52-page hardback picture book aimed at readers aged 4 to 10. Written by Andy J. Pizza and Sophie Miller, it invites children to imagine they've put on a pair of magical glasses that let them see the invisible forces around them: feelings, moods, sounds, tastes, and everything in between.
The book started life as a series of viral posts on Twitter (now X), racking up tens of thousands of likes and retweets before being turned into a fully fledged book by Chronicle Books in July 2023. It debuted on the New York Times bestseller list immediately upon release.
Rather than being a dry lesson in emotional literacy, it takes a playful, art-led approach. Could you draw an itch? What does hope look like? How does the taste of a lollipop feel in colour? These are the kinds of questions it poses, using bold mixed-media illustrations set against clean white backgrounds.
Why it's worth buying
There are plenty of books about feelings on the market, but Invisible Things stands apart for a few reasons:
It goes beyond basic emotions
This isn't just "happy, sad, angry." It covers sensory experiences like sounds and smells, abstract concepts like vibes and gratitude, and even the strange contradiction of how a sad song can make you feel happy. The range is genuinely impressive for a 52-page book.
It's been reviewed by a mental health expert
The content was vetted by a licensed independent clinical social worker who specialises in children's mental health. That gives it a layer of credibility that many similar titles lack.
It doubles as a mindfulness exercise
At its core, the book works like a gentle body-scan meditation for children. It encourages readers to pause, take a deep breath, and reflect on what's happening inside and around them. Useful for classrooms, therapy settings, or just a quiet moment before bed.
The design is brilliant
Andy J. Pizza is a well-known illustrator and host of the Creative Pep Talk podcast. Sophie Miller is a mixed-media artist originally from Yorkshire. Together, their work is colourful, energetic, and completely original. It looks nothing like a standard children's book, which is part of its charm.
Book details
Title: Invisible Things
Authors: Andy J. Pizza and Sophie Miller
Publisher: Chronicle Books
Published: 18 July 2023
Pages: 52
Binding: Hardback (casebound)
Size: 240 x 290 mm
ISBN: 9781797215204
Reading age: 4 to 10 years
RRP: From £13
Where to buy the Invisible Things book in the UK
You can pick up a copy from any of these UK-friendly retailers:
Counter-Print is a specialist design bookshop and a lovely place to browse if you're into illustration, graphic design, or typography. Bookshop.org UK supports independent bookshops with every purchase.
Who is it for?
The suggested reading age is 4 to 10 years, but honestly, it works well for anyone who enjoys thoughtful illustration and a fresh take on emotional awareness. Parents, teachers, therapists, and caregivers will all find it useful as a conversation starter. It also makes a cracking gift for creative kids, or for any adult who appreciates beautifully designed picture books. If you're after more gift ideas along those lines, take a look at our curated gift picks.
Frequently asked questions
What age is the Invisible Things book for?
The publisher recommends it for ages 4 to 10, but adults will enjoy it too, particularly anyone interested in illustration, mindfulness, or social-emotional learning.
Who wrote the Invisible Things book?
It was created by Andy J. Pizza and Sophie Miller. Andy is the illustrator behind the Creative Pep Talk podcast and the bestselling A Pizza with Everything on It. Sophie is a mixed-media artist originally from Yorkshire, England.
Is the Invisible Things book a New York Times bestseller?
Yes. It hit the New York Times bestseller list straight away when it was published in July 2023.
How much does the Invisible Things book cost in the UK?
Prices start from around £13 depending on the retailer. You can buy it from Counter-Print, Amazon UK, or Bookshop.org UK using the links above.
Is this book useful for schools or therapy?
Very much so. It was reviewed by a licensed clinical social worker who specialises in children's mental health, and it's widely used as a social-emotional learning resource in classrooms and therapeutic settings.
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