This book is dedicated to the brightest episodes and main milestones in the history of the Old Believers. The story of this primordially Russian spiritual movement begins from the time of the appearance of Christianity in Russia and reaches the present day. The reader gets acquainted with living portraits of prominent historical figures (Archpriest Avvakum, boyar Morozov, etc.), with vivid stories about memorable events. The book is easy to write, but not lightweight. Behind the simple narrative lies a great deal of the historian's work in archives and libraries. Such a book will be of interest to the widest readership, primarily to children, youth and people who have heard about the Old Believers for the first time. The book can be used as a teaching aid when teaching the subject "Fundamentals of Orthodox Culture."