Complex sentence: Asimov's Science Fiction celebrated its thirtieth anniversary in 2007, with an anthology edited by the magazine's current editor, Sheila Williams, drawing on stories published from 1977 to the present day, it was published by Tachyon Publications.
Split into simpler sentences: Asimov's Science Fiction celebrated its thirtieth anniversary in 2007, with an anthology edited by the magazine's current editor, Sheila Williams. Drawing on stories published from 1977 to the present day, it was published by Tachyon Publications.