I'll be sincere.I tried to read this trash-book, for free on an internet site.After reading a few pages, I decided not to continous.The main "idea" of this trash-book is that until 1975, a massive famine would exterminate the majority of mankind, including the majority of american population.A fake.Today, books following the same malthusians ideas of this trash-book, are being published and many of them, are best-sellers.Please, don't waste your money and time, buying this trash-book.