Best-selling comic, single edition

Best-selling comic, single edition
Who
Marvel Comics
What
8,100,000 unit(s) sold
Where
United States (New York City)
When

The best selling single edition of a comic book is X-Men 1 (Marvel Comics, 1991) with sales of 8.1 million copies. It was created by Chris Claremont (UK) and Jim Lee (USA) who also drew 4 variant covers all of them published simultaneously with cover date October 1991.