Want a quick overview of public relations for libraries? This book is for you. While it does not provide a lot of depth on various aspects of PR, it does a good job of touching on all the aspects of public relations that a library should cover and think about. It is a good first look at the subject that can then be followed with some more in-depth research of various topics.
Powerful Public Relations: A How-To Guide for Libraries by Rashelle S. Karp