The previous version was a great collection of funny puzzles and it proved its value. Since the previous book is already quite thick, instead of keeping adding more puzzles into it, I decide to write a new edition with all the new puzzles inside. If you are preparing the programming interview for a software engineer position, you might want to look at this book. Make sure you have basic knowledge of data structure and algorithm, because this book is mostly focus on how to resolve the coding puzzles with existing data structure and algorithm. If you need some refresh of data structure and algorithm, there is a good book you might want to take a look first, by Thomas H. Cormen. In this new version, there are 53 new puzzles. Again and again, this book is used to present how to analysis a problem and solve the challenge with some existing algrithoms. Improving your ability of solveing the problem is much more important than writing the code..