This book is written not only for those who like to negotiate, but also for those who avoid negotiations, as well as for those who find it difficult to understand whether they got it right or got it wrong when entering into negotiations. It reflects the results of empirical research that the authors conducted over several decades, carefully analyzing various strategies and testing their effectiveness in various conditions of use. The book will be useful to everyone who has to enter into negotiations and conduct them, both at work and in everyday life and in the family. Published in Russian for the first time.