This book serves as a foundation for specialists and non specialists interested in polymeric drug delivery and as well as a text for use in a graduate level drug delivery course. The breadth of topics included in this book provides a comprehensive review of how polymers are applied in the field of drug delivery. The book is divided into six parts (introduction, injectable polymeric drug delivery systems, implantable polymeric drug delivery systems, oral polymeric drug delivery systems, advanced polymeric drug delivery, and conclusion) with contributing chapters containing worked examples, key points, and homework problems. The book begins with an introduction to drug delivery that provides the foundation for all subsequent chapters and concludes with a discussion of how specific polymeric drug delivery systems are chosen for a particular application.