The 28 papers in this sourcebook relate to the evaluation of children's services in public libraries: (1) "Introduction to Evaluation" (Jane Robbins and Douglas Zweizig); (2) "Research and Measurement in Library Services to Children" (Adele Fasick); (3) "Evaluating Children's Services" (Diana Young); (4) "What Is Good about Children's Library Service--How Can You Tell?" (Karen Krueger); (5) "Evaluation of Children's Services" (Mary Chelton); (6) "Looking Around" (Charles McClure, et al.); (7) "Information To Support Planning for Children's Services" (Douglas Zweizig); (8) "Systematic Observation" (Jane Robbins); (9) "Interviewing Young Children" (Lynn McDonald and Holly Willett); (10) "Interviewing Using Micro-moments and Backward Chaining" (Eliza Dresang); (11) "Sampling" (Jane Robbins); (12) "Introduction to Sampling in a Nutshell'" (Morris Slonim); (13) "Questionnaires" (Jane Robbins); (14) "Construction of the Questionnaire in Survey Research" (Barbara Moran); (15) "Examples of Questionnaires Designed To Deal with Children's Services"; (16) "Introducing an Environment Rating Scale for Public Library Children's Services (Holly Willett); (17) "Sampling" (Nancy Van House, et al.); (18) "National Statistics on Public Library Service to Children: Why and How To Get Them" (Mary Jo Lynch); (19) "Output Measures for Children's Services in Wisconsin Public Libraries" (Douglas Zweizig, Joan Braune and Gloria Waity); (20) "Managing Children's Library Collections Through Objective Data" (Craighton Hippenhammer); (21)"Book Discussion as an Evaluation Tool" (Holly Willett); (22) "Beyond Reviews: Using Book Discussion as a Method for New Materials Selection" (Kathleen Horning); (23) "Use of Discussion in Reconsideration of a Title" (Dianne Hopkins); (24) "Discussion for Awards and Distinctions" (Eliza Dresang); (25) "Guidelines for Book Discussions" (Ginny Kruse and Kathleen Horning); (26) "Commentary on an Approach to Discussion: The CCBC Guidelines for Book Discussion" (Holly Willett); (27) "The Politics of Evaluation" (Jane Goodwin); and (28) "Reporting the Results of Library Research" (W. Boyd Rayward). (MAB)