Tales of the Slayer
*Spike and Dru: Pretty Maids All in a Row - Christopher Golden
Buffy: Origin - Christopher Golden

During Season 2...

*Ring of Fire - Doug Petrie and Byan Sook

During Season 3...

*Child of the Hunt - Christopher Golden and Nancy Holder
*Return to Chaos - Craig Shaw Gardener
The Gatekeeper Trilogy Book I: Out of the Madhouse - Christopher Golden and Nancy Holder
The Gatekeeper Trilogy Book II: Ghost Roads - Christopher Golden and Nancy Holder
The Gatekeeper Trilogy Book III: Sons of Entropy - Christopher Golden and Nancy Holder
Immortal - Christopher Golden and Nancy Holder
*The Book of Fours - Nancy Holder
Paleo - Yvonne Navarro
The Evil That Men Do - Nancy Holder
Resurrecting Ravana - Ray Garton
Revenant - Mel Odom
*Sins of the Father - Christopher Golden
Obsidian Fate - Diana G. Gallagher
*Prime Evil - Diana G. Gallagher

During BtVS: Season 4/AtS: Season 1...

*Angel: City of... - Nancy Holder
*Angel: Not Forgotten - Nancy Holder
Angel: Redemption - Mel Odom
Angel: Close to Grounds - Jeff Mariotte
*Angel: Shakedown - Don DeBrandt
Angel: Hollywood Noir - Jeff Mariotte
Angel: Avatar - John Passarella
Angel: Bruja - Mel Odom
Angel: Soul Trade - Thomas E. Sniegoski
Angel: The Summoned - Cameron Dokey
*Buffy: The Lost Slayer Part I - Prophecies - Christopher Golden
*Buffy: The Lost Slayer Part II - Dark Times - Christopher Golden
*Buffy: The Lost Slayer Part III - King of the Dead - Christopher Golden
*Buffy: The Lost Slayer Part IV - Original Sins - Christopher Golden
Oz: Into the Wind - Christopher Golden
*Past Lives - Christopher Golden and Tom Sniegoski

Between BtVS: Season 4 and 5/AtS: Season 1 and 2...

*Unseen Book I: The Burning - Nancy Holder and Jeff Mariotte
*Unseen Book II: Door to Alternity - Nancy Holder and Jeff Mariotte
*Unseen Book III: Long Way Home - Nancy Holder and Jeff Mariotte

During BtVS: Season 5/AtS: Season 2...

*Buffy: False Memories - Tom Fassbender and Jim Pascoe
Buffy: These Our Actors - Dori Koogler and Ashley McConnell
*Buffy: Wisdom of War - Christopher Golden
*Buffy: Ugly Little Monsters - Tom Fassbender and Jim Pascoe
*Buffy: Tempted Champions - Yvonne Navarro
*Angel: Haunted - Jeff Mariotte
*Angel: Image - Mel Odom
Angel: Stranger to the Sun - Jeff Mariotte
Angel: Vengeance - Scott Cierwin and Dan Jolley

Between BtVS: Season 5 and 6...

*The Death of Buffy - Tom Fassbender, Jim Pascoe, and Fabian Nicieza

During BtVS: Season 6/AtS: Season 3...

Angel: Endangered Species - Nancy Holder and Jeff Mariotte
Angel: The Longest Night
*Buffy: Creatures of Habit - Tom Fassbender, Jim Pascoe
Angel: Monster Island - Christopher Golden and Thomas E. Sniegoski

*these books have been reviewed