Keeping a library program vital requires regular reflection about current practices and a willingness to implement changes that will position the library and library staff should they be threatened with elimination. "Simply Indispensable: An Action Guide for School Librarians" helps librarians do just that. The book begins with an explanation of the need to act and then offers a systematic approach to taking action. Each chapter is devoted to an active path: attracting patrons; interacting with teachers, parents, administrators, and the community; communicating; reacting to "situations;"...