About the book: 1964 / The brochure is dedicated to Lenin’s brilliant work “What is to be done?”, which played an outstanding role in the creation of the revolutionary Marxist party. The author of the brochure is a candidate of history Sciences F.M. Suslova illuminates the situation in Russian and international social democracy at the beginning of the 20th century, the historical situation in which V.I.’s book was written. Lenin "What to do?" The brochure shows that V.I. Lenin in his work developed the ideological, political and organizational foundations of a new type of party. Wrestling V.I. Lenin, Iskrists against international and Russian opportunism, for the purity and creative development of Marxism are considered in close connection with modernity. Shows the historical significance of the book by V.I. Lenin "What to do?" and the relevance of the issues covered in it. The brochure is written as a consultation and is intended for propagandists, teachers and independent students of the history of the CPSU.