Britannica All New Children’s Encyclopedia

What We Know & What We Don’t! An amazing 424-page compendium of knowledge to satisfy all curious minds! Packed full of incredible facts you can trust, this All New Children’s Encyclopedia celebrates Britannica’s return to printed books.

Earth? Space? Animals? History? STEM?

The Britannica All New Children’s Encyclopedia has them all.

Telling the story of the world from the beginning of time to the present day, this book is a must-have addition to every family bookshelf and library collection! This beautifully illustrated, 424-page compendium of amazing facts you can trust provides hundreds of hours of fun learning for curious children and their families.

Watch the Book Trailer with editor Christopher Lloyd:

With 100+ experts from around the world, and 1000+ images including specially commissioned illustrations and photos, this single-volume Children’s Encyclopedia takes Britannica’s reputation for authentic, trustworthy information and brings it to a whole new audience.

With all new material, the Encyclopedia also has many exciting new features:

Known Unknowns

We realise that when you find an answer, it often sparks many more questions!  These Known Unknowns delve into the many things that are waiting to be discovered, and highlight some of the most intriguing unsolved puzzles in science, archaeology, history and engineering


Through these engaging lists, you can learn a fantastic amount of information and understand different topics in surprising new ways!  


Incredible facts with which you can WOW your relatives, teachers or classmates! Spread throughout the book, the facts are explained within the context of each topic

Game Changers – Our own list of V.I.Ps, who changed the course of history or science with their actions and discoveries

Note from the Experts – Get to know the people behind the facts! There is an expert behind every page of this encyclopedia

Ask the ExpertsAt the end of every chapter there is an interview with three different experts, explaining what they love about their job and what they are working to discover at the moment

Quiz – Check out the multiple-choice quiz at the end of each chapter. All the answers can be found somewhere in the chapter, so this is the perfect way to find out what you know and what you don’t!

Connecting Knowledge – At the bottom of every page there is a list of connected topics, so that you can find out more about the things that interest you

Also new: a unique narrative overview of our planet and its history

Unlike old encyclopedias that are structured from A-Z, this encyclopedia has a narrative arc, telling the story of the world from the beginning of time to the present day and even into the future! The Encyclopedia explores a wide range of topics and is divided into eight chapters by subject: Universe, Earth, Matter, Life, Humans, Ancient & Medieval Times, Modern Times, and Today & Tomorrow

Have a browse through a few pages of the Encyclopedia!

Foreword by: J.E. Luebering

(Editorial Director of Encyclopaedia Britannica)

Editor: Christopher Lloyd

(Author and CEO of What on Earth Publishing)

  • Hardcover: 424 pages
  • Publisher: Britannica Books (1 Oct. 2020)
  • Language: English
  • ISBN-10: 1912920476
  • ISBN-13: 978-1912920471



"Just to say my order - the Britannica All New Children's Encyclopedia - arrived today. It is excellent, very well presented and accessible information. Thank you very much for getting it sent out this week, perfect timing for our granddaughter's birthday! She will be delighted."

Anthony Horowitz

"A book of wonders and a wonderful book!"

Jacqueline Wilson

"An amazing, colourful collection of fantastic facts."


"What on Earth has reported 'astonishing demand' for its first collaboration with Britannica Inc, the Britannica All New Children's Encyclopedia: What We Know & What We Don't. The book sold 6,000 copies in its first week on sale. In the US, forward orders ahead of publication on 13 October are more than 21,000 copies. In Australia, where What on Earth's titles are distributed by Walker Books, there are orders for 5,000 copies. Reprints are in hand: 20,000 copies for the US and 15,000 for the UK."

The Telegraph

"A fantastic new voyage through world history."

"A cartwheeling compendium of interconnected facts, questions, answers and not-sures, taking the reader from the Big Bang to the future of thought-controlled body parts, and bursting with colourful visuals and snappy paragraphs."

"A hefty hard back book featuring more than 400 pages of information, pictures, graphics, biographies, vocabulary and so much more. The book feels luxurious and the thick paper makes this a pleasure to dip in and out of or read cover to cover."

"The pages are visually stunning with incredible illustrations, diagrams and maps …This is a superb text that is deserving of its place in any primary school classroom and library, as well as on home bookshelves for pleasure and fun. Well designed and pleasing to hold and read, it is an incredible book. Up-to-date information will aid research and knowledge and enable children to quench their thirst for facts and knowledge."

National Geographic Kids Magazine

"The Britannica All New Children's Encyclopedia brings a world of knowledge right to your fingertips."

Nikki Gamble, Director, Just Imagine, Exploring Children's Literature

“The book is a cornucopia of the wonderous. It’s authoritative and appealing in its text, illustration and design.”

“This is a triumph of nonfiction publishing for children which sets a gold standard.”

Lancaster Guardian

“Simply bursting with facts and fun, the Britannica All New Children’s Encyclopedia offers home learning for all the family to enjoy.”

The School Reading List

“This book helps educate children to be critical, confident, and independent-minded thinkers.”

“The thinking parent’s children’s Christmas present for 2020.”


“The Britannica All New Children’s Encyclopedia is divided into eight chapters that take readers on a journey.”

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