The Art of Looking Sideways, by Alan Fletcher
One of my sources of inspiration on a rainy day is my library. I try not to force ideas but think about a design or a problem I'm trying to solve, perhaps visually. I first started collecting MAD Magazines as a kid, in order to get better at drawing cartoons. I greatly admired Sergio Aragones' ability to draw between the frames and silently communicate humor sometimes more effectively than the actual comics.