This new book from Packt Publishing has just been added to my collection of technical book purchases (joined by Sonar Code Quality Testing Essential - yet to be released).
This book contains more than 80 recipes describing practical ways to use Jenkins and the best of breed plugins from the over 400 available. The recipes are grouped and extensions are also covered in this must have book.
If you use Jenkins and want to get more out of it this may be just the book you are looking for. Improve your Jenkins security, get more effective use of code metrics and utilise remote testing with some of the many recipes provided. This book will soon become the goto book for anyone administrating a Jenkins server.