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. Rev. ed. 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. Illus. Tom O'Sullivan. New York: Grosset & Dunlap, 1977.
A Nancy Drew Picture Book 2: The Secret of the Twin Puppets. Carolyn Keene. Illus. 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. Illus. 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. Illus. Paul Frame. New York: Pocket Books (Wanderer Books), 1981.
Nancy Drew Ghost Stories. Carolyn Keene. Illus. Paul Frame. New York: Pocket Books (Wanderer Books), 1983. Rpt. New York: Pocket Books (Minstrel Books), (July) 1987.
The Hardy Boys Ghost Stories. Franklin W. Dixon. Illus. Paul Frame. New York: Pocket Books (Wanderer Books), 1984. Rpt. Pocket Books (Minstrel Books), (July) 1987.
Nancy Drew and the Hardy Boys Camp Fire Stories. Carolyn Keene and Franklin W. Dixon. Illus. 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. Illus. Paul Frame. New York: Pocket Books (Wanderer Books), 1984.
Nancy Drew Ghost Stories 2. Carolyn Keene. Illus. Paul Frame. New York: Pocket Books (Wanderer Books), 1985.
2001-Present
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. Rpt. New York: Grosset & Dunlap, 2005.
Nancy Drew Mad Libs. Roger Price and Leonard Stern. New York: Price Stern Sloan, 2005.
Nancy Drew Pocketbook Mysteries. Carolyn Keene. New York: Grosset & Dunlap, 2007.
The Nancy Drew Sleuth Book. Carolyn Keene. Rpt. 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. Quirk, 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.
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.
Confessions of a Teen Sleuth: A Parody. Chelsea Cain. New York: Bloomsbury USA, 2005.