A thorough understanding of the uses and applications of statistical techniques is integral in gaining support for library funding or new initiatives. This resource is designed to help practitioners develop and manipulate descriptive statistical information in evaluating library services, tracking and controlling limited resources, and analyzing data that supports a library's long-term goals. This second edition includes new examples based on actual situations. The book is divided into eight chapters: (1) "Introduction to Statistics;" (2) "Basic Methods for Data Analysis;" (3) "Data Comparisons in the Library Environment;" (4) "Presenting Numerical Data in Tables and Charts;" (5) "Measures of Central Tendency;" (6) "Measures of Variability;" (7) "Linear Regression and Correlation Analysis;" and (8) "Sampling Strategies and Tallying a Survey." Each chapter includes a self-assessment quiz with answers, and discussion questions and problems that have answers provided at the end of the book. Includes an index. (Contains 12 references.) (SWC)