Depression is a leading mental health concern in aging individuals. Written to be used in collaboration with a qualified mental health professional, Treating Later-Life Depression: Workbook is designed to address and alleviate depression and related concerns (chronic pain, sleep problems, anxiety, brain health, family caregiving and grief) in middle-aged and older adults. This practical Workbook, along with its companion Clinician Guide, reflects the latest scientific and clinical advances in cognitive-behavioral therapy for age-related problems, in individual, group, and telehealth formats. Along with learning how to re-engage in a meaningful daily life, individuals will build skills using personalized change strategies such as problem solving, relaxation training, self-compassion, reframing unhelpful thoughts and effective communication practices, among others. This workbook contains Learn pages and Practice forms; use of the paperback version allows clients to complete these worksheets between sessions to enhance their understanding and use of skills to improve emotional well-being. The Workbook closes with resources to support middle-aged and older adults' ongoing efforts at achieving and maintaining a greater sense of wellbeing.