"Mr. Tompkins Inside Himself" is the final part in the trilogy of the famous physicist Georgy Antonovich Gamov about a modest bank employee who enthusiastically studies the achievements of modern science. Together with his colleague, the famous biologist Martinas Ichas Gamow, with his inherent brilliance and wit, forces his hero to experience incredible adventures inside his own body, revealing to the reader an exciting picture of the achievements of modern biological science and touches on many important problems that modern scientists are working to solve. Not bound in his dreams (in which Mr. Tompkins gets acquainted with the achievements of modern science almost more actively than in reality) by the tight time frame of reality, Mr. Tompkins meets characters who surprisingly resemble outstanding scientists of the present and past science of Saint-Gyorgy, Darwin, Mortan, Pavlov and Gamow himself!