Bradbury's lifelong passion for books began at an early age. After graduating from high school, Bradbury's family could not afford for him to attend college so Bradbury began spending time at the Los Angeles Public Library where he essentially educated himself. As a frequent visitor to his local libraries in the 1920s and 1930s, he recalls being disappointed because they did not stock popular science fiction novels, like those of H. G. Wells, because, at the time, they were not deemed literary enough. Between this and learning about the destruction of the Library of Alexandria, a great impression was made on the young man about the vulnerability of books to censure and destruction. Later, as a teenager, Bradbury was horrified by the Nazi book burnings and later by Joseph Stalin's campaign of political repression, the "Great Purge", in which writers and poets, among many others, were arrested and often executed.