The Walking Dead, Book 3 by Robert Kirkman
The Walking Dead Vol. 4: The Heart’s Desire by Robert Kirkman
The Walking Dead Vol. 5: The Best Defense (v. 5) by Robert Kirkman
The Walking Dead, Vol. 6: This Sorrowful Life (v. 6) by Robert Kirkman
The Walking Dead, Book 7: The Calm Before by Robert Kirkman
The Taking by Dean Koontz
Amnesia Moon by Jonathan Lethem
I Am Legend by Richard Matheson
The Tain by China Mieville
This Is the Way the World Ends by James Morrow
Where Late the Sweet Birds Sang: A Novel by Kate Wilhelm
Way of the Wolf (The Vampire Earth, Book 1) by E. E. Knight
Choice of the Cat (The Vampire Earth, Book 2) by E. E. Knight
Tale of the Thunderbolt (The Vampire Earth, Book 3) by E. E. Knight
Valentine’s Rising (The Vampire Earth, Book 4) by E. E. Knight
Valentine’s Exile (Vampire Earth, Book 5) by E. E. Knight
Valentine’s Resolve (Vampire Earth, Book 6) by E. E. Knight
The World Without Us by Alan Weisman (Not post-apocalyptic fiction, but a scientific look at what the world might look like if humans were to suddenly disappear. Should be of interest to fans of post-apocalyptic fiction.)
Field Guide to the Apocalypse: Movie Survival Skills for the End of the World by Meghann Marco