"The Change of Capgras" is a book written by the famous psychologist Samuel Vaknin, which reveals to readers the hidden psychological and mental mechanisms of human consciousness. The author investigates the phenomena associated with the feeling of alienation from oneself and others, details the process of forming illusions and wishes in our perception of reality. "The Change of Capgras" is not only a book about psychology, but also an attempt to reveal to the reader important insights that can help to better understand oneself and others.