This book sets the stage by providing a clear, systematic, and integrative model for mental health assessment and treatment planning that can be used in a variety of clinical settings, with a diverse adult clinical population. The authors advocate for the importance of considering all aspects of evidence-based practice (i.e., best available research, clinician's expertise, and experience, as well as clients' preferences and idiosyncrasies) when conducting assessments and delivering psychological treatments. Special attention is also given to the interdisciplinary aspects of delivering mental health care in today's fast-paced environments. If you are a seasoned clinician or a beginner therapist, you will surely find this book useful because it provides a general map that can be used regardless of your specific theoretical orientations. The applied nature of the content makes it easy and valuable for readers who wish to apply psychology integration to their own practice. Specifically, case vignettes have been developed to help readers gain a better understanding on how to apply the integrative interprofessional framework into their practice. Finally, professors and supervisors will also find this book worthwhile as the authors incorporated a chapter on the supervision and evaluation of assessment and treatment planning competencies.