There are 2 books in the Zombie Apocalypse series.
The Zombie Apocalypse series does not have a new book coming out soon. The latest book, Zombified (Book 2), was published in February 2015.
The first book in the Zombie Apocalypse series, Zomburbia, was published in September 2014.
The Zombie Apocalypse series primarily falls into the Science Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.