R. L. Stine, the writer of the famous children's horror book, Goosebumps has written a lot of books of different series. On the Goosebumps series alone (which includes Goosebumps, Goosebumps Series 2000, and Give yourself Goosebumps), he has written around 219 books. And from other titles, there was 196 books recorded in the internet. He also wrote 12 standalone novels and several others. Summing everything up, he has written about 500 books.