Imponderables (book series)

Imponderables is a series of eleven books written by David Feldman and published by HarperCollins. The books examine, investigate, and explain common, yet puzzling phenomena. Examples include "Why do your eyes hurt when you are tired?", "Why do judges wear black robes?", and "Why do you rarely see purple Christmas lights?", among many others. The word "imponderable" is used to describe such mysteries of everyday life. The books are effectively a frequently asked questions list for people who wonder why and how the world works as it does.

The first book in this series, Imponderables: The Solution to the Mysteries of Everyday Life, was illustrated by Kas Schwan and was published in 1986.

The books in the series (each named after an imponderable covered in the book) are:

The books feature additional chapters on Frustables, which are defined as imponderables that are uniquely frustrating because they lack a clear answer. Some of the recurring frustables are:

Feldman also wrote a book solely about linguistic mysteries, titled Who Put the Butter in Butterfly? (1989). The book deals with the mysterious origins of names and phrases in the English language.

The term "Imponderables" is a trademark.

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