This approachable, interdisciplinary text reflects the author's twenty-plus years of experience in the substance abuse field. Comprehensive and broad in its scope, the book parallels the practice process with substance abuse clients, offering a four-stage organization (an overview that includes theoretical foundations, pharmacology, and models, client engagement, screening and assessment, and treatment) that walks students through this process. The book's highly applied nature ensures that students will find an abundance of specific information they can put to use in daily practice.