The most important thing first: you shouldn't read this book in one go. The author's aphorisms encourage reflection.
A suggestion: pick up the book, run your finger over the spine and open it at any page, preferably with your eyes closed. You will find passages like the following:
"Why do children of criminals end up in care and not their parents in forensic psychiatry?"
With these and many other questions, Zankl challenges his readers to look behind the scenes!
He deals with questions of upbringing ("complicated"), with the topics of education and professional life (also "complicated") and with the topic of men and women (this much can be revealed: "very complicated").