A History of Western Philosophy is a 1945 book by philosopher Bertrand Russell. A survey of Western philosophy from the pre-Socratic philosophers to the early 20th century, it was criticised for its over-generalization and its omissions, particularly from the post-Cartesian period, but nevertheless became a popular and commercial success, and has remained in print from its first publication. When Russell was awarded the Nobel Prize for Literature in 1950, A History of Western Philosophy was cited as one of the books that won him the award. Its success provided Russell with financial security for the last part of his life.