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. What the 2nd edition brings to you: 1.136 problems in Recursion, Divid and Conquer, Binary Search, Tree Traversal, Graph Traversal, Dynamic Programming, String Search etc, which is more than enough for preparing a software engineer interview. Every puzzle contains a detailed explanation and some implementations. 2.An Appendix in the end of this book for designing question preparation. This appendix includes some selected papers, books I had read in the past two years. And I think this is the most important change in the second edition. Learning what current industry does and keeping improving the design skill will help yourself in a long-term career. Again, this book is used to present how to analysis a problem and link the inside the challenge with some existing algrithoms. The goal of this book is to improve the problem solving ability, not to be a collection of latest interview questions from Facebook, Google etc. Hope this book can help you get your desired offer.