Counting Creatures, by Julia Donaldson & Sharon King-Chai
10 Dogs, by Emily Gravett
You Can't Count on Dinosaurs, by Philip Ardagh & Elissa Elwick
We all went on Safari: a counting journey through Tanzania, by Laurie Krebs & Julia Cairns
How Many Legs? by Yes Gray & Jim Field
The "Ten Little..." series by Mike Brownlow & Simon Rickerty
Books About Shapes & Numbers
Walter's Wonderful Web, by Tim Hopgood
The Perfect Fit, by Naomi Jones & James Jones
The Triangle/ Square/ Circle trilogy by Marc Barnett & Jon Klassen
A Hundred Billion Stars, by Seth Fishman & Isabel Greenberg
How big is a million? by Anna Milbourne & Serena Riglietti
Books About Various Maths Concepts
Martha Maps it Out, by Leigh Hodgkinson - maps
Isobel Adds it Up, by Kristy Everington & AG Ford (arithmetic)
Some of these are Snails, by Carter Higgins (sorting, quantifying)
Friends Beyond Measure, by Lalena Fisher (info graphics, data handling)
Wild Fibonacci: Nature's Secret Code, by Joy N. Hulme & Carol Schwartz (Fibonacci sequence)
Fractions in Disguise, by Edward Einhorn & David Clark (fractions)
Inside, Outside, Upside Down, by Stan & Jan Berenstain (position)
A very Improbable Story, by Edward Einhorn & Adam Gustavson (probability)
What's the Time, Mr Wolf, by Debi Gliori (time)
One Very Big Bear, by Alice Briere-Haquet, Olivier Philipponneau & Raphaele Enjoy (size comparison)
Equal, Shmequal, by Virginia Kroll & Philomena O'Neill (weighing & measuring)
The Sir Cumference series by Cindy Neuschwander & Wayne Geehan (the series covers various maths concepts)
Count on Me, by Miguel Tanco (mentions various maths concepts)
Molly and the Mathematical Mystery, by Eugenia Cheng & Aleksandra Artymowska (mentions various maths concepts)
A Mathematician Like Me, by Dr Shini Somara & Nadja Sarell (mentions various maths concepts)
Ada Twist, Scientist, by Andrea Beaty & David Roberts (show relevance of maths in the world of work)
Picture Books About Mathematicians
The 'Little People, Big Dreams' series by Isabel Sanchez and various illustrators; includes e.g. Ada Lovelace and Alan Turing
Code Breaker, Spy Hunter: How Elizebeth Friedman changed the course of two world wars, by Laurie Wallmark & Brooke Smart
Grace Hopper: Queen of Computer Code, by Laurie Wallmark & Katy Wu
Srinivasa Ramanujan: Friend of Numbers, by Priya Narayanan
Maryam's Magic: The Story of Mathematician Maryam Mirzakahni, by Megan Reid & Aaliya Jaleel
Counting on Katherine, by Helaine Becker & Dow Phumiruk
Hedy Lamarr's Double Life, by Laurie Wallmark & Katy Wu
What's Your Angle, Pythagoras? by Julie Ellis & Phyllis Hornung
Emmy Noether: The Most Important Mathematician You've Never Heard Of, by Helaine Becker & Kari Rust
The Boy Who Loved Maths: The Improbable Life of Paul Erdös, by Deborah Heiligman & LeUyen Pham
Chapter Books & Novels
Count, by Melvin Burgess (age 7+)
Danny Chung Does Not Do Maths, by Maisie Chan (age 8+)
The Phantom Tollbooth, by Norton Juster (age 8+)
The Number Devil: A Mathematical Adventure, by Hans Magnus Enzensberger (author), Rotraut Susanne Berger (illustrator) & Michael Henry Heim (translator) (age 8+)
Ruby Redford: Feel the Fear, by Lauren Child (age 9+)
A Wrinkle in Time, by Madeleine L'Engle (age 9+)
The Jamie Drake Equation, by Christopher Edge (age 9+)
The Curious Incident of the Dog in the Night-Time, by Mark Haddon (age 10+)
I, Ada: Rebel. Genius. Visionary. by Julia Gray (age 12+)
White Rabbit, Red Wolf, by Tom Pollock (age 14+)
An Abundance of Katherines, by John Green (age 14+)
The Quantum Weirdness of the Almost-Kiss, by Amy Noelle Parks (age 14+)
My Mechanical Romance, by Alexene Farol Follmuth (age 14+)
Maths Adventure Books
The Maths Quest series, by David Glover
The Superquesters series, by Lisa Moss, Thomas Bernard & Amy Wilcox
Poetry
Nine: A Book of Nonet Poems, by Irene Latham & Amy Huntington (age 5+)
Einstein: The Girl Who Hated Maths, by John Agard & Satoshi Kitamura (age 6+)
Graphic Novels
The Thrilling Adventures of Lovelace and Babbage, by Sydney Padua (age 11+)
Non Fiction Books
Just a Second, by Steve Jenkins (age 4+)
Look Inside Maths, by Rosie Dickens (age 4+)
How many mice make an elephant? and other big questions about size and distance, by Tracey Turner & Aaron Cushley (age 6+)
100 Things to Know About Numbers, Computing & Coding, by various authors & illustrators (age 8+)
The 'Murderous Maths' series, by Kjartan Poskitt (age 8+)
Mathematics for Beginners, by Sarah Hull, Tom Murray & Paul Boston (age 8+)
What's the Points of Maths? by DK books (age 8+)
Maths Activity & Puzzle Books
This Book Thinks You're a Maths Genius, by Mike Goldsmith (age 7+)
Don't Mess with Maths, by Anna Claybourne (age 8+)
Maths Art and Drawing Games for Kids, by Karyn Tripp (age 8+)
This is not a Maths Book, by Anna Weltman (age 10+)