A lot is written about the problem of communication and how to solve it, that is, how to learn to communicate effectively. However, communication remains a topic of constant interest. At the heart of this problem is the following paradox. People communicate with each other every day, and it seems that daily activities (communication) should be constantly improved. In other words, by communicating daily, every person should learn to do it not just effectively, but in a highly professional way. Nevertheless, we see the opposite picture in life - there are not so many people who can competently build their communication. Why does it happen? How do we find a solution to this paradox? One of the attempts to answer these questions is the publication of a training manual "Psychology of professional communication of a lawyer".This book has been translated with Artificial Intelligence.