The 48 Laws of Power is a self-help book by American author Robert Greene. The book is a New York Times bestseller, selling over 1.2 million copies in the United States. From Wikipedia
Report reveals more than 22,000 books barred in Florida's prisons - the highest in the country - and identifies two types of censorship, including content-neutral rules like shipping restrictions, but warns actual incidents of banning may be significantly higher due to unreliable or non-existent record-keeping in many prisons.