The reader is asked to perform a series of mathematical operations integrated into the story of a lazy man who plants magic seeds and reaps an increasingly abundant harvest.

The reader is asked to perform a series of mathematical operations integrated into the story of a lazy man who plants magic seeds and reaps an increasingly abundant harvest

"The reader is asked to perform a series of mathematical operations integrated into the story of a lazy man who plants magic seeds and reaps an increasingly abundant harvest" -- Title page verso.

One by one, ten children move from their old house into their new house with all their possessions. Die-cut windows reveal the interiors of the houses and the book can also be read from back to front.

Three children, Tom, Hannah, and Shadowchild, who represents the reader, are made to guess, using the concept of binary logic, the color of the hats on their heads. An introduction to logical thinking and mathematical problem-solving.

A simple text and colorful illustrations introduces factorials in such a way that children new to multiplication can grasp and use the concept.

A collection of poems written in the form of mathematical problems and grouped according to seasonal themes.