Lessons in Teletherapy provides composite case studies and a treatment framework for clinicians exploring virtual therapy with clients. Louis Propp, a seasoned clinical psychologist specializing in child, adolescent, and family therapy, draws from his experience rapidly transitioning to telehealth during the first year of the COVID-19 pandemic. These stories mirror the real patient and provider challenges and progression, in monthly segments, addressing such issues as family domestic violence, behavioral issues, neurodivergence, substance abuse, social discrimination, grief, and psychopathology. Using a cognitive behavioral therapy-based treatment intervention-developed from ideas common to both in-person and virtual therapy-Dr. Propp demonstrates and explains how this framework may be applied to each client's unique situation.