This book is much more than just another self-improvement manual. At first glance, it seems that the twelve rules, each of which is devoted to a chapter, are just practical, everyday tips that try to regulate everyday life. However, to justify each of these simple principles, the author, referring to the best samples of philosophy, world literature, religion, and science, weaves a complex, multi-layered story, which forces one to think about much more profound and complex existential questions.