The book "Ten Days in a Madhouse; or, Nellie Bly's Experiences on Blackwell's Island. Inventing Madness to Reveal the Horrors of the Hospital. The Trials of a New York Girl Correspondent of The New York World" by Nellie Bly is a fascinating essay about the ten days that the journalist Nellie Bly spent time in the insane asylum on Blackwell Island. This book is the result of the investigation of a female reporter who secluded herself among patients, pretending to be insane, to uncover the secrets and horrors of the 19th century mental health system. Nellie Bly faced a ridiculous administration, negligence of the medical staff and terrible living conditions of the patients. She describes in detail the shortcomings of the system and the psychological state of people who were considered "incompetent". The book "Ten Days in a Madhouse" makes the reader think about morality, humanism and the fate of those who find themselves in the clutches of the government and careless attitude to deep human problems. Nellie Bly conveys her experiences of being in a madhouse with precision and impressive power, and her revelations really strike deep into the heart of anyone who turns to this book. "Ten Days in a Madhouse" is an important testimony of how journalists can use their power to reveal the truth and defend human rights.