The third book of the seventh volume of the Complete Works consists of the following sections: Lost and Unfound. Unfulfilled plans for works and publications. Yesenin in photographs. Chronological outline of life and creativity. Bibliography of Yesenin’s books and collective collections with his participation. In this electronic edition, the “Index” section is omitted. The text of the book was translated from the original language using an artificial intelligence program. For the most part, the translation of the text is of very high quality, but in some cases, due to the imperfection of the technology, there may be incorrect phrase translations in the text, as well as single words and expressions may not be translated.