Beyond Good and Evil - The Writer, December, 1994.
Breaking the Rules - The Writer, June, 1991.
Criminal Viewpoint - The Oxford Companion to Crime and Mystery Writing, 1999.
How to Generate Suspense in Fiction - The Writer, June, 1999.
If You Haven’t a Clue - Basics of Writing and Selling Mystery and Suspense, 1991.
In the Beginning is the End - Writing Mysteries, 1992.
The Long and Short of It - The Writer, December, 1987.
Not Quite Dead Enough - (introduction), Rex Stout Reprints, 1992.
Nothing Old Under the Sun - The Writer, July, 1980.
Setting for Suspense - The Writer, July, 1974.
The Sight of Music - Mystery Readers Journal, 1990.
Short and Shamus - Writing the Private Eye Novel, 1997.
Two Timers - Mystery Scene #41, 1994.
Using Technology in Mysteries - The Writer, July, 1978.