This book is a body of knowledge about a terrifying human disease. We're talking about cancer. Journalist and writer Katerina Gordeeva has been actively involved in the #defeatcancer project for several years. She talked with leading scientists and the best oncologists in Russia and the world, collected current information about the origin of the disease, methods of its treatment and medications. This is the first thing. Secondly, the book tells about the dramatic stories of specific people fighting the disease, both famous (Lyudmila Ulitskaya, Raisa Gorbacheva, Laima Vaikule, Zhanna Friske, etc.) and non-public ones. Thirdly, these are the rules of the battle against cancer for those who have been diagnosed with this disease, and recommendations for everyone else. Book “Rules of Combat. #defeatcancer" is important for everyone.