Isaac Asimov's Science Fiction Magazine: October 26, 1981.
Volume 5, Number 11 (whole #45.) Cover: Larry Noble (for "The Artistic Touch")

Featured stories:
"The Artistic Touch" by Ian Watson
"On Coincidences in Nature" (article) by Bernard Carr & Tony Rothman
"Intersections" by John M. Ford
"The Theft of the Mulberry Tree" by Avram Davidson (Adventures in Unhistory);
"The North Wind" by James Gunn
"Backup System" by F. M. Busby
"The Dark Side of Mallworld" by Somtow Sucharitkul ("Mallworld" series - novelette.)