I started this book years ago and then left it out in the rain and then it was in the freezer for a year or so. It’s SO GREAT. If you like math puzzles but can get bogged down with too much detail or too many arcane diagrams, this is for you. Lots of short anecdotes illustrating a math puzzle or a conundrum. Just enough backstory to make it interesting--and for you to look up if it turns out it’s your thing--and then on the next thing. Entertaining cartoons and the always readable Gardner explaining it all. Worth tracking down, a really great book.