This is a compilation of Zombie:Armageddon books 1 to 3 plus a bonus novella, ZombieDead.
This works well as one volume. It means that readers can get right into the world of Zombie Armageddon in one hit, and at one great price. The addition of ZombieDead is a nice touch. While not of the same series, it is of the same genre and fits well. I have already reviewed all four of these books before so I won't rehash them here. Just be aware that the violence and gore is brutal and unrelenting. I recommend these as an introduction into Ian's work. He just keeps getting better!