Book excerpt: Flowers offers guidance for librarians in examining all aspects of teen programming and services to determine where improvement is needed. Readers will learn how to Develop goals and objectives for evaluation Collect the data for a realistic picture of a library’s strengths and weaknesses Use many different types of data with the help of practical examples included in the text Evaluate YA collections, summer reading programs, special events, and library staff This guide comes with an explanation of the YALSA competencies, the YALSA teen services evaluation tool, and models for what excellent teen services programs should look like. Ready-to-use evaluation forms and checklists save time and resources by improving assessment methods in minutes.