It's not so much reading as the vast, vast quantity of works that reference, name-check or derive from his work in comics, movies and video games. In his life, Lovecraft connected his work to Robert (Conan/Tarzan) Howard and Lord Dunsany's, and a whole host of early science fiction authors took up the ideas of his shared reality, which leads us to latter-day literary connections as diverse as Game of Thrones (the Ironborn worship a dead god beneath the sea, associated with a Kraken), random books by Stephen King, the Evil Dead films, Futurama, and Castlevania video games.