Anchored in the CACREP accredication standards, this third book in the Counseling and Professional Identity series provides counselors and human service professionals with a solid foundation to understand lifespan/developmental theory and apply these constructs to clients in counselling at various stages. Each chapter in the book is dividided into a 3-step method, starting with a description of the theoretical content, followed by clinical illustrations and finishing with a complex case study with the distinctive “counselor thinking” feature accompanied by guided practice exercises. The book will also emphasize self reflection to help students learn experientially as they move through the text.