Franklin W. Dixon is a popular pseudonym used for the series "The Hardy Boys," a long-running children's mystery book series. The name Franklin W. Dixon was created by the publisher, Edward Stratemeyer, who hired various ghostwriters to write the books under this pen name.

Published by the Stratemeyer Syndicate, "The Hardy Boys" series follows the adventures of two teenage brothers, Frank and Joe Hardy, as they take on various mysteries and solve crimes together. The books first debuted in 1927 and have since become a beloved and iconic series in children's literature.

Over the years, multiple authors have written under the pseudonym Franklin W. Dixon, contributing to the ever-growing collection of "The Hardy Boys" books. Each book typically features a standalone mystery, but overarching storylines and character developments also occur throughout the series. The books are known for their fast-paced plots, intriguing puzzles, and the resourcefulness and bravery of the Hardy Boys.

"The Hardy Boys" series has remained popular among young readers worldwide, with new titles still being released to this day. Franklin W. Dixon's work has captivated generations of audiences, igniting a love for mystery and adventure in countless young readers.