"Head cases" ("Disorders of brain activity") is a fascinating non-fiction essay that analyzes extremely interesting cases of brain disorders and their impact on human mental health. The author of the book, a well-known psychologist and Doctor of Science, describes in detail some of the most impressive stories of patients with various brain disorders, while explaining the differences in their perception of the world and their own personality. In addition, the book also reveals current issues in the field of neuropsychology and possible ways to support and treat people who face similar problems. "Brain disorders" is a fascinating journey into the world of the human mind and its possibilities, which will help everyone to better understand and feel the importance of mental health in the life of each person.