The book of the famous scientist, member of the US National Academy of Sciences is a concise overview of modern concepts on the most important problems of evolutionary theory at the level of an organism. Thanks to a careful selection of factual data and examples, which, unlike other summaries of evolution, are few in the book, Grant was able to consider all the main problems with a relatively small volume: microevolution, natural selection, inheritance of acquired traits, speciation, macroevolution and human evolution. The author steadily adheres to the Darwinian theory of evolution.