Positive psychotherapy (PPT) is a therapeutic endeavor within positive psychology that aims to alleviate symptomatic stress by way of enhancing well-being. Traditional psychotherapy does a good job of making clients feel, for example, less depressed or less anxious, but the well-being of clients is not an explicit goal. Positive psychology studies the conditions and processes that enable individuals, communities, and institutions to flourish. PPT integrates symptoms with strengths, risks with resources, weaknesses with values, and regrets with hopes, in order to understand the inherent complexities of human experience in a balanced way. Without dismissing or minimizing the client’s concerns, the PPT clinician empathically understands and attends to pain associated with trauma and simultaneously explores the potential for growth. This clinician’s manual contains 15 PPT sessions, with core concepts, guidelines, skills, and worksheets for practicing these skills. Each session focuses on one or more practice and includes a Fit & Flexibility section that presents various ways that PPT practices can work (without losing their core elements) given clients’ specific situations. Each session includes at least one vignette as well as cross-cultural implications.