The book that 'inspired' George Orwell's classic novel 1984 (I think he did begrudgingly acknowledge at some point that he ripped this book off) & is the diffinitive work of fiction about a Utopian society & the nature of what it means to be human. If you're studying English Lit this would be a good book to read to impress the tutors & it's actually an enjoyable read too. It was also banned in it's native Russia for over 60 years. Classic.