Book cover of What If?: Serious Scientific Answers to Absurd Hypothetical Questions

Book description

THE SUNDAY TIMES NUMBER ONE BESTSELLER

From the creator of the wildly popular xkcd.com, hilarious and informative answers to important questions you probably never thought to ask.

Millions visit xkcd.com each week to read Randall Munroe's iconic webcomic. Fans ask him a lot of strange questions: How fast can you…

When you buy books, we may earn a commission that helps keep our lights on (or join the rebellion as a member).

Why read it?

2 authors picked What If? as one of their favorite books. Why do they recommend it?

Randall Munroe is the creator of the online comic xkcd. He’s a really funny guy who also happens to be crazy smart and knowledgeable about, well, just about anything science and tech, it seems.

In this book, he tackles critical questions, like how fast can you hit a speed bump while driving and live, and if there was a robot apocalypse, how long would humanity last? You see? Really critical questions.

This is more a grab it off the shelf, put your feet up, pick a random page, and have fun type of read rather than a cover-to-cover read (although,…

If you’ve ever wondered what would happen if the sun went out or if you could create a jetpack by firing machine guns into the ground, this is the book for you. And if you haven’t ever wondered these things before, but are wondering now, this book may also be for you.

I do not think I am spoiling this hilariously educational book by letting you know that the answers to the absurd hypothetical questions in this book range from the mundane to the catastrophic. You may find yourself enjoying the journey so much that you don’t notice that Munroe’s…

If you love What If?...

Book cover of The Rosewood Penny

The Rosewood Penny by J.S. Fields,

2023 Queer Indie Award Nominee!

The dragons of Yuro have been hunted to extinction.

On a small, isolated island, in a reclusive forest, lives bandit leader Marani and her brother Jacks. With their outlaw band they rob from the rich to feed themselves, raiding carriages and dodging the occasional vindictive…

Want books like What If??

Our community of 12,000+ authors has personally recommended 100 books like What If?.

Browse books like What If?

Book cover of A Short History of Nearly Everything
Book cover of The Hitchhiker's Guide to the Galaxy
Book cover of Fuzz: When Nature Breaks the Law

Share your top 3 reads of 2025!

And get a beautiful page showing off your 3 favorite reads.

1,343

readers submitted
so far, will you?

📚 If you like What If?, you might also like...

Book cover of Portrait of an Artist as a Young Woman

Portrait of an Artist as a Young Woman by Alexis Krasilovsky,

Kate from Jules et Jim meets I Love Dick.

A young woman filmmaker’s journey of self-discovery, set against a backdrop of the sexual liberation movement of the 1970s and 1980s. In Portrait of an Artist as a Young Woman, we follow Ana Fried as she faces the ultimate…

Book cover of Malcolm Before X

Malcolm Before X by Patrick Parr,

Malcolm Before X is about finding a way to continue moving forward after everything has been taken from you. While in prison, Malcolm Little discovered the power of reading and found a way to transform his character and become a better man. This half-biography focuses on that transformation, especially his…

5 book lists we think you will like!