"Dvoechnyk" is a book by the Russian writer Nikolay Nikolayevich Popov, which tells the story of the childhood and teenage years of the main character, who suffers from learning disabilities and faces difficulties in various aspects of his life. The author carefully describes the main character's internal conflicts, moral reflections and searches, paving the way to important discoveries and self-knowledge. This book is an insightful work that makes the reader think about the meaning of dealing with one's own shortcomings and the importance of personal development.