Writings:NONFICTION
- The Writer's Digest Character Naming Sourcebook, Writer's Digest Books (Cincinnati, OH), 1994, 2nd edition, 2005.
- The Writer's Guide to Everyday Life in the Middle Ages, Writer's Digest Books (Cincinnati, OH), 1995, published as Everyday Life in the Middle Ages: The British Isles, 500 to 1500, 2000.
- The Writer's Complete Fantasy Reference, Writer's Digest Books (Cincinnati, OH), 1996.
ROMANCE NOVELS- Daemon's Angel, Leisure (New York, NY), 1995.
- (With Liz Carlyle and Nicole Camden) Out of Uniform (includes "Bad to the Bone"), Pocket (New York, NY), 2003.
- (With Amanda Ashley and Lori Handeland) Stroke of Midnight (includes "Winter Born"), St. Martin's Press (New York, NY), 2004.
- (With Rebecca York and Robin D. Owens) What Dreams May Come (includes "Knightly Dreams"), Berkley Sensation (New York, NY), 2005.
- (With Melanie George and Jaid Black) Tie Me up, Tie Me Down (includes "Captivated by You"), Pocket (New York, NY), 2005.
- Playing Easy to Get, Pocket (New York, NY), 2006.
- Sweet Dreams Are Made of This, St. Martin's Press (New York, NY), 2006.
Contributor to anthologies, including Naughty or Nice, St. Martin's Press (New York, NY), 2001; Tapestry, Jove Books (New York, NY), 2000; Seven Seasons of Buffy, BenBella, 2003; Midnight Pleasures, St. Martin's Press, 2003; and Man of My Dreams, Jove Books, 2004.
"LEAGUE" SERIES
- Paradise City, Leisure (New York, NY), 1994.
- Born of the Night, Pinnacle (New York, NY), 1996.
- Born of Fire (e-book), Dreams Unlimited, 1998.
- Fire and Ice (e-book; also see below), iPublish.com, 2001.
"DARK-HUNTER" SERIES- Fantasy Lover, St. Martin's Press (New York, NY), 2002.
- Night Pleasures, St. Martin's Press (New York, NY), 2002.
- Night Embrace, St. Martin's Press (New York, NY), 2003.
- Dance with the Devil, St. Martin's Press (New York, NY), 2003.
- Kiss of the Night, St. Martin's Press (New York, NY), 2004.
- Night Play, St. Martin's Press (New York, NY), 2004.
- Seize the Night, St. Martin's Press (New York, NY), 2005.
- Sins of the Night, St. Martin's Press (New York, NY), 2005.
- Unleash the Night, St. Martin's Press (New York, NY), 2005.
- Dark Side of the Moon, St. Martin's Press (New York, NY), 2006.
- Devil May Cry, St. Martin's Press (New York, NY), 2007.
- The Dark-Hunter Companion, St. Martin's Press (New York, NY), 2007.
- Acheron, St. Martin's Press (New York, NY), 2008.
- One Silent Night, St. Martin's Press (New York, NY), 2008.
- Bad Moon Rising, St. Martin's Press (New York, NY), 2009.
"B.A.D. (BUREAU OF AMERICA DEFENSE)" SERIES- B.A.D. Attitude, Pocket (New York, NY), 2005.
- Born to be B.A.D., Pocket (New York, NY), 2005.
- Phantom in the Night, Pocket (New York, NY), 2007.
"DREAM-HUNTER" SERIES- The Dream Hunter, St. Martin's Press (New York, NY), 2007.
- Upon the Midnight Clear, St. Martin's Press (New York, NY), 2007.
- Dream Chaser, St. Martin's Press (New York, NY), 2008.
- Dream Warrior, St. Martin's Press (New York, NY), 2008.
ROMANCE; AS KINLEY MacGREGOR- A Pirate of Her Own ("Sea Wolves" series), HarperPaperbacks (New York, NY), 1999.
- Master of Seduction ("Sea Wolves" series), HarperPaperbacks (New York, NY), 2000.
"BROTHERHOOD OF THE SWORD" SERIES- A Dark Champion, Avon (New York, NY), 2004.
- Return of the Warrior, Avon (New York, NY), 2005.
- The Warrior, Avon (New York, NY), 2007.
"LORDS OF AVALON" SERIES- Sword of Darkness, Avon Books (New York, NY), 2006.
- Knight of Darkness, Avon Books (New York, NY), 2006.
Contributor to anthologies, including All I Want for Christmas, St. Martin's Press (New York, NY), 2000.
"MacALLISTER" SERIES; AS KINLEY MacGREGOR
- Master of Desire, Avon (New York, NY), 2001.
- Claiming the Highlander, Avon (New York, NY), 2002.
- (With Lisa Kleypas and Julia Quinn) Where's My Hero? (contains "Midsummer's Knight"), Avon (New York, NY), 2003.
- Born in Sin, Avon (New York, NY), 2003.
- Taming the Scotsman, Avon (New York, NY), 2003.