This article is from the Isaac Asimov FAQ, by Edward J. Seiler firstname.lastname@example.org and John H. Jenkins email@example.com with numerous contributions by others.
Asimov compiled a list of his F&SF essays on the occasion of the 20th
anniversary of his first essay, in the November 1978 issue of F&SF, and
reprinted (slightly updated) in the collection The Road to Infinity .
That list is ordered alphabetically according to the title of the essay,
and includes a designation of the collection in which each essay appears
as well as a very brief subject description for each essay. However
Asimov went on to write a total of 399 essays, the last of which appeared
in February 1992. (A 400th essay was compiled by Janet after his death
and published in the December 1994 issue of F&SF.)
Of the 174 editorials published in IASFM, dealing mainly with Asimov's
thoughts on Science Fiction, 22 were included in
Asimov on Science Fiction , 66 in Asimov's Galaxy , 10 in Gold , and 3
in Magic , but he did not compile an index to these. ( Gold also
reprinted 3 of the IASFM essays that appeared in
Asimov on Science Fiction and 19 of the essays that appeared in
Asimov's Galaxy , and Magic reprinted 2 of the IASFM essays from
Asimov on Science Fiction and 3 from Asimov's Galaxy ).
Asimov also wrote numerous other essays that were published in other
magazines, many of which have appeared in other essay collections.
Seeing the need for a single index to all of Asimov's essays, Rich Hatcher
and Ed Seiler valiantly decided to compile one, and after many months of
work, it was completed. Their guide lists over 1600 essays, including the
subject of the essay, the publication in which the essay first appeared,
and a list of Asimov's collections in which the essay appeared. Indexes
list the essays chronologically for each major series (e.g. the science
essays in the Magazine of Fantasy and Science Fiction), and also group the
essays by subject, in order to help you find any essay Asimov wrote on any
given subject. The guide is available via the World Wide Web, at