The Simple Solution to Rubik's Cube

Cain's Jawbone

I Spy Spooky Night

To Mock a Mockingbird and Other Logic Puzzles

I Spy Mystery

Problem solving 101

Bobby Fischer teaches chess

The Mystery of the Disappearing Cat

QBQ! The Question Behind the Question

Sideways Arithmetic from Wayside School

A Tangled Tale

Mr. Benedict's Book of Perplexing Puzzles, Elusive Enigmas, and Curious Conundrums

The Hellbound Heart

The Committee of Sleep

F*ck feelings

Map crosswords

Kokology

Super Silly Riddles

The Minto pyramid principle

Applied Imagination

Human problem solving

We're Going on a Bear Hunt

Six thinking hats

Ban this book

Ready Player One

Win at chess

I Spy

Social conflict

How To

Book of Names (Diadem

The castle of fear

Problem solving and programming concepts

The All New Captain Underpants Extra-Crunchy Book O' Fun 2

Thinking course

Algorithms to Live By

The life and games of Mikhail Tal

The Castle of Adventure

Philosophy here and now

The Mystery of the Burnt Cottage

Five Go Off in a Caravan

The Back of the Napkin

Mercy Watson: Something Wonky This Way Comes

Polly the Party Fun Fairy

Mercy Watson to the rescue

Katie the Kitten Fairy

Mercy Watson Thinks Like a Pig

The Mystery of Tally-Ho Cottage

Mercy Watson fights crime