Written in everyday language, this comprehensive book presents the core principles of systems theory through the lens of individual, couple, and family therapy. Demonstrating how a systemic framework can complement or supplement more traditional individualistic models, each concept is discussed in depth and illustrated with clinically relevant examples that bring the material to life. Appropriate for use at the graduate level and by mental health professionals who want to gain a better understanding of how they can use a systems approach to enhance their work with clients.