1959–1979
The Hardy Boys’ Detective Handbook. Authentic Detective Methods for Solving Mysteries. Franklin W. Dixon in consultation with Captain D.A. Spina. New York: Grosset & Dunlap, 1959.
The Hardy Boys Detective Handbook. Revised edition. Franklin W. Dixon in consultation with Special Agent William F. Flynn, FBI, Retired. New York: Grosset & Dunlap, 1972.
The Nancy Drew Cookbook: Clues to Good Cooking. Carolyn Keene. New York: Grosset & Dunlap, 1973.
Nancy Drew Detective Logic Puzzles. Wayne Williams. New York: Tempo Books/Grosset & Dunlap, 1977.
A Nancy Drew Picture Book 1: Mystery of the Lost Dogs. Carolyn Keene. Illustrated by Tom O’Sullivan. New York: Grosset & Dunlap, 1977.
A Nancy Drew Picture Book 2: The Secret of the Twin Puppets. Carolyn Keene. Illustrated by Tom O’Sullivan. New York: Grosset & Dunlap, 1977.
The Hardy Boys and Nancy Drew Meet Dracula [Hardy Boys/Nancy Drew TV Tie-In]. Stratemeyer Syndicate. New York: Grosset & Dunlap, 1978.
The Haunted House and Flight to Nowhere [The Hardy Boys TV Tie-In]. Stratemeyer Syndicate. New York: Grosset & Dunlap, 1978.
The Nancy Drew Sleuth Book: Clues to Good Sleuthing. Carolyn Keene. New York: Grosset & Dunlap, 1979.
1980–1985
The Nancy Drew Book of Hidden Clues. Carolyn Keene. New York: Pocket Books (Wanderer Books), 1980. [Advertized but never released]
The Hardy Boys Handbook: Seven Stories of Survival. Franklin W. Dixon with Sheila Link. Illustrated by Leslie Morrill. New York: Pocket Books (Wanderer Books), 1980.
The Hardy Boys Who-Dunnit Mystery Book. Franklin W. Dixon. New York: Pocket Books (Wanderer Books), 1980.
Nancy Drew and the Hardy Boys Super Sleuths!: Seven New Mysteries. Carolyn Keene and Franklin W. Dixon. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1981.
Nancy Drew Ghost Stories. Carolyn Keene. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1983. New York: Pocket Books (Minstrel Books), (July) 1987.
The Hardy Boys Ghost Stories. Franklin W. Dixon. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1984. New York: Pocket Books (Minstrel Books), (July) 1987.
Nancy Drew and the Hardy Boys Camp Fire Stories. Carolyn Keene and Franklin W. Dixon. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1984.
Nancy Drew and the Hardy Boys Super Sleuths! 2: Seven New Mysteries. Carolyn Keene and Franklin W. Dixon. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1984.
Nancy Drew Ghost Stories 2. Carolyn Keene. Illustrated by Paul Frame. New York: Pocket Books (Wanderer Books), 1985.
2001–2007
Nancy Drew’s Guide to Life. Jennifer Worick. Philadelphia: Running Press, 2001.
The Hardy Boys’ Guide to Life. Franklin W. Dixon. New York: Simon & Schuster Books for Young Readers, 2002.
The Nancy Drew Cookbook: Clues to Good Cooking. Carolyn Keene. Reprinted. New York: Grosset & Dunlap, 2005.
Nancy Drew Mad Libs. Roger Price and Leonard Stern. New York: Price Stern Sloan, 2005.
The Hardy Boys’ Guide to Life. Paul Ruditis. Philadelphia: Running Press, 2007.
Nancy Drew Pocketbook Mysteries. Carolyn Keene. New York: Grosset & Dunlap, 2007.
The Nancy Drew Sleuth Book. Carolyn Keene. Reprinted. New York: Grosset & Dunlap, 2007.
The Lost Files of Nancy Drew. Carolyn Keene. New York: Grosset & Dunlap, 2007.
Nancy Drew: Murder in the Hollywood Hills. Daniela Burr. New York: Simon Spotlight, 2007.
The Official Nancy Drew Handbook: Skills, Tips, and Life Lessons from Everyone’s Favorite Girl Detective. Penny Warner. Philadelphia: Quirk Books, 2007.
Clues for Real Life: The Classic Wit & Wisdom of Nancy Drew. Stephanie Karpinske. Meredith, 2007.
The Wisdom of Nancy Drew: The Nancy Drew Guide to Solving Life’s Little Mysteries. Amy Helmes. Oak Cider, 2007.
Nancy Drew: Hollywood Head Scratchers. Jen Funk Weber. New York: Simon Scribbles, 2007.
Nancy Drew: Still Sleuthing! Jen Funk Weber. New York: Simon Scribbles, 2007.
Tributes and Parodies (1993–2005)
The Case of the Not-so-Nice Nurse: A Nancy Clue Mystery. Mabel Maney. Pittsburgh: Cleis Press, 1993.
The Case of the Good-for-Nothing Girlfriend: A Nancy Clue Mystery. Mabel Maney. Pittsburgh: Cleis Press, 1994.
A Ghost in the Closet: A Hardly Boys Mystery. Mabel Maney. 2nd ed. San Francisco: Cleis Press, 1995.
The House on the Point: A Tribute to Franklin W. Dixon and the Hardy Boys. Benjamin Hoff. New York: St. Martin’s Minotaur, 2002.
Mystery Box. Gordon McAlpine. Chicago: Cricket Books, 2003.
Confessions of a Teen Sleuth: A Parody. Chelsea Cain. New York: Bloomsbury USA, 2005.