Before you is a new book by Alexander Tarasov, which can be called another bestseller after the sensational books “Psychology of Lies”, “Recognize a Liar! How to recognize deception. 12 practical tips." “The Psychology of Lies in Business: Bad Infinity”, “Lies in Politics, or the Yellow Logarithm”, “Phenomenology of Organizational Information Security”. Lies are one of the most amazing phenomena of human communication. But how to recognize lies and deception? By what signs? It is difficult to do this, but it is possible. Alexander Tarasov answers questions that are interesting to every person: what is inherent in the human psyche by nature that allows and helps him to deceive other people? Are there psychological prerequisites for the development of a person’s attitude towards lying? It is very important to understand that behind a lie there is a person with the whole complex of his thoughts, feelings, desires, and values. Having accurately understood the liar, correctly assessed the consequences of his deception and the degree of his repentance, we may be able to soften our sentence to him. And the liar, in turn, may think about it and become more honest. Well, what if - no? Then let him blame himself.