Community colleges are a cornerstone of higher education and serve the unique needs of the communities in which they reside. In 2019, community colleges accounted for 41 percent of all undergraduate students in the United States. Community college librarians are engaged in meaningful work designing and delivering library programs and services that meet the needs of their diverse populations and support student learning. The Community College Library series is meant to lift the voices of community college librarians and highlight their creativity, tenacity, and commitment to students. The Community College Library: Assessment explores the research, comprehensive plans, and new approaches to assessment being created by community college librarians around the U.S. Chapters include sample activities and materials and cover topics including assessing student learning while shifting from Standards to Framework; investigating and communicating library instruction's relationship to student retention; and building librarian assessment confidence through communities of research practice. This book demonstrates the innovative and replicable ways community college librarians are measuring, evaluating, and reflecting on the services they provide, and how to use these assessments to demonstrate the value and impact of library services and advocate for resources.