The New One Minute Manager
Simple and classic book. Easy to understand and so relatable. It was worth the time to read this book and have a good discussion over the same. A lot of ideas discussed in this short book are very easy to replicate in our work culture too. Many things mentioned in the book are followed by me and some of the leaders I work with and it has indeed made difference in team spirit too.
One other good part of the book is the way it is narrated in form of a story makes it interesting and fun to read. It was not a regular preachy self-help book and that was one major plus point for me.