Book excerpt: This book aims to provide the clinicians with details of online cognitive behavioral therapy (CBT) to facilitate care delivery for patients struggle with depression and anxiety. Chapters cover some of the most fundamental concepts for successful treatment, including experiments, action plans evidence, and the guidelines for managing, thoughts, feelings, and other key concerns. Designed to be a reader-friendly guide, each chapter opens with a summary of the content and a recap of concepts covered in previous sections, making this highly functional for individual chapter or whole book use. Each chapter also includes recommended tables and chart to facilitate the documentation of each recommended session, making this highly practical resource a vital tool for those who treat patients suffering from these particular mental health concerns. Online Cognitive Behavioral Therapy is a unique guide to practical Mental e-Mental Health approaches that is valuable to psychiatrists, psychologists, counselors, social workers, and all clinicians who wish to treat anxiety and depression patients remotely.