Young adult books are a handful of info about the subject books. Another book of his which i enjoy is Momo, which talks about "time thieves" and the methods that we use our time. http://All12.ru/outgocounter.php?url=aHR0cHM6Ly92aXJhbGNvbW1zLmNvbS9iYnMvYm9hcmQucGhwP2JvX3RhYmxlPWZyZWUmd3JfaWQ9MzA0MjU1