From what I know of H.P. Lovecraft, he was a writer that had many trials in his life, and he wrote stories to vent some of his anger. His writing is very descriptive, and he does a very good job of painting a picture for his readers. In my opinion, his most notable stories were the ones involving the Cthulhu Mythos.
The stories involved an evil alien god figure named Cthulhu, which also happened to be a name used in a tabletop roleplaying game based on the works of H.P. Lovecraft called “Call of Cthulhu” after the story he wrote.