Edward Stratemeyer

Edward Stratemeyer was an American writer of juvenile adventure fiction.

He was one of the most prolific writers in the world, producing in excess of 1,300 books himself, selling in excess of 500 million copies, and created the well-known fictional-book series for juveniles including The Rover Boys, The Bobbsey Twins, Tom Swift, The Hardy Boys, and Nancy Drew series, among others. On Stratemeyer's legacy, Fortune wrote: "As oil had its Rockefeller, literature had its Stratemeyer."
- Wikipedia