David Harrison Books

Big, colourful books
for curious kids

Scroll through the worlds inside the books — from deep space to the age of dinosaurs.

The flagship

100,000 Whys

The big illustrated encyclopedia of amazing answers for curious kids aged 6–12.

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The books

Illustrated, fact-packed books that turn every “why?” into a “wow.”

100 big questions, 1,000+ facts — a picture on every page.

Hundreds of jaw-dropping facts about our world.

Puzzles, quizzes and fun for young football fans.

24 true tales of courage and determination.

Inside 100,000 Whys

Ten chapters of questions — tap one and watch the world change around you.

Tap a chapter to step inside it.

From this chapter

One of 10 big questions in this chapter — every one answered with a picture.

Free for curious families

Fifty more amazing questions, answers and “Wow!” facts — free when you join the reader list.