Robert E. Howard

Robert Ervin Howard was an American pulp writer of fantasy, horror, historical adventure, boxing, western, and detective fiction. Howard wrote "over three-hundred stories and seven-hundred poems of raw power and unbridled emotion" and is especially noted for his memorable depictions of "a sombre universe of swashbuckling adventure and darkling horror."

He is well known for having created — in the pages of the legendary Depression-era pulp magazine Weird Tales — the character Conan the Cimmerian, a.k.a. Conan the Barbarian, a literary icon whose pop-culture imprint can only be compared to such icons as Tarzan of the Apes, Count Dracula, Sherlock Holmes, and James Bond.

-Wikipedia

Librarian Note: There is more than one author in the Goodreads database with this name.