xkcd: How to
Seems like the author Randall Munroe is publishing a new book in September!
I already own the books What if? and Thing Explainer. Both are totally genius!
For any task you might want to do, there's a right way, a wrong way, and a way so monumentally bad that no one would ever try it. How To: Absurd Scientific Advice for Common Real-World Problems is a guide to the third kind of approach. It's the world's least useful self-help book.
It describes how to cross a river by removing all the water, outlines some of the many uses for lava around the home, and teaches you how to use experimental military research to ensure that your friends will never again ask you to help them move.
With text, charts, and stick-figure illustrations, How To walks you through useless but entertaining approaches to common problems, using bad advice to explore some of the stranger and more interesting science and technology underlying the world around us.