It falls in superhero category . This book was published in May 2007 - April 2008 . The name of the book is Countdown to Final Crisisand it was published by DC Comics . It used to be published Weekly . The no. of issues of the book is 51 . Darkseid,Donna Troy,Jimmy Olsen,Mary Marvel,Jason Todd,Harley Quinn,Holly Robinson,Karate Kid,Kyle Rayner,Superman-Prime,Monarch,Ray Palmer,Pied Piper,Triplicate Girl,Forager,Trickster,Duela Dentare the main characters of the book . Countdown to Final Crisis was a Limited series
Countdown to Final Crisis falls into 3 category