Linked titles point to the book's page at amazon.com.

Ghost of the Hardy Boys: An Autobiography by Leslie McFarlane. Methuen, 1976

The Hardy Boys' Swell Guide to Life. Simon & Schuster, October 2002

The House on the Point: A Tribute to Franklin W. Dixon and the Hardy Boys by Benjamin Hoff. The House on the Cliff revisited, with "fresh dialogue and three-dimensional characters." October, 2002.

Science Fiction, Children's Literature, and Popular Culture: Coming of Age in Fantasyland, by Gary Westfahl, has one chapter about the Hardy Boys books. Published 2000.

The Secret of the Stratemeyer Syndicate by Carol Billman, 1986

The Mysterious Case of Nancy Drew & the Hardy Boys by Carole Kismaric and Marvin Heiferman. Simon & Schuster, 1998

Yellowback Library, ed. Gil O'Gara - A monthly newsletter about series books. P.O. Box 36172, Des Moines, IA 50315. Subscriptions are $30/yr.

Nancy Drew and The Hardy Boys by Peggy Herz - About the TV show of the 70s. Scholastic, 1977

Hardy and Hardy Investigations by Tony Carpentieri, 1997 (SynSine Press)

The Lost Hardys: A Concordance by Robert L. Crawford (SynSine Press)

The Bayport Companion by Charles Heffelfinger

Frank and Joe Turn Blue by Tony Carpentieri (SynSine Press) - About the Hardy Boys picture covers

Collector's Guide to Hardcover Boys' Series Books by E. Christian Mattson

Edward Stratemeyer and the Stratemeyer Syndicate by Deidre Johnson

Stratemeyer Pseudonyms and Series Books by Deidre Johnson (editor)