The educational publication, compiled on the basis of many years of experience in teaching organic chemistry at the Faculty of Chemistry of Moscow State University named after M.V. Lomonosov, contains about 1200 tasks and questions on most sections of the modern university course in organic chemistry according to the curriculum. Particular attention is paid to the development of skills in analyzing the structure of organic compounds and the practice of assessing the influence of structural factors on the reactivity of compounds, as well as attracting stereochemical representations when discussing the mechanisms of organic reactions. There are 17 chapters in the manual.