Nowhere! copyright @ 1983 by Nightfall, Inc.
Outsiders, Insiders copyright @ 1986 by Nightfall, Inc.
Science Fiction Anthologies copyright @ 1981 by Nightfall, Inc.
The Influence of Science Fiction copyright @ 1981 by Nightfall, Inc. Women and Science Fiction copyright @ 1983 by Nightfall, Inc. Religion and Science Fiction copyright @ 1984 by Nightfall, Inc.
Time-Travel copyright @ 1984 by Nightfall, Inc.
Plotting copyright @ 1989 by Nightfall, Inc. Metaphor copyright @ 1989 by Nightfall, Inc. Ideas copyright @ 1990 by Nightfall, Inc. Suspense copyright @ 1991 by Nightfall, Inc. Serials copyright @ 1980 by Nightfall, Inc.
The Name of Our Field copyright @ 1978 by Nightfall, Inc.
Hints copyright @ 1979 by Nightfall, Inc.
Writing for Young People copyright @ 1986 by Nightfall, Inc.
Names copyright @ 1984 by Nightfall, Inc. Originality copyright @ 1986 by Nightfall, Inc. Book Reviews copyright @ 1981 by Nightfall, Inc.
What Writers Go Through copyright @ 1981 by Nightfall, Inc.
Revisions copyright @ 1982 by Nightfall, Inc. Irony copyright @ 1984 by Nightfall, Inc. Plagiarism copyright @ 1985 by Nightfall, Inc. Symbolism copyright @ 1985 by Nightfall, Inc. Prediction copyright @ 1989 by Nightfall, Inc. Best-Seller copyright @ 1983 by Nightfall, Inc. Pseudonyms copyright @ 1984 by Nightfall, Inc.
Dialog copyright @ 1985 by Nightfall, Inc.