The main topic of the book K20 is mental health. Specifically, it should bring the stay in the ward in a psychiatric hospital closer to an ordinary person. The book is written as a retrospective diary. It contains sketches of a drawing diary, photographs, or objects made during the therapies. There are two different types of text in the book – part with my story and the informative part. The book has 20 chapters – 272 pages in total. The book should correct the general awareness of the problems of the mentally ill. It has the potential to dispel myths about medical facilities.