Introduces and defines the documentation and decision making processes in collection development, explores organizational models for collection development in health sciences libraries, and describes the rationales and methodologies for assessing health sciences library collections. It also explores the relationship of collection development and assessment to other library functions and services, and addresses the budgeting process. This work is intended for librarians in all types of health sciences libraries, but the principles and topics covered will have application in science libraries as well. The volume will be useful in library school classes in medical librarianship or in collection development.