The no. of issues of the book is 50 . Bill Mantlowrote the book Invasion! . Ronnie Raymondare the main characters of the book . It falls in post-apocalyptic category . This book was published in Issue #2 February 1989,August 2011 – September 2013,March 2008 - present . Vertigo published ,The book named Invasion! . An issue used to be published Bi-monthly . Invasion! was a Limited series
Invasion! was published Bi-monthly