From Vertical:
There’s a girl at their school who is always ill. She routinely arrives late, leaves early, or doesn’t show up at all, and skips the gym as a matter of course. She’s pretty, and the boys take to whispering that she’s a cloistered princess. As the self-described worst loser in her class soon finds out, they just don’t know what a monster she is. So begins a tale of mysterious maladies that are supernatural in origin yet deeply revealing of the human psyche, a set of case files as given to unexpected feeling as it is to irreverent humor. So begins the legendary novel that kicked off the MONOGATARI series, whose anime adaptations have enjoyed international popularity and critical acclaim.

Original Release:
Bakemonogatari - 2 Volumes
Kizumonogatari - 1 Volume
Nisemonogatari - 2 Volumes
Nekomonogatari - 2 Volumes
Kabukimonogatari - 1 Volume
Hanamonogatari - 1 Volume
Otorimonogatari - 1 Volume
Onimonogatari - 1 Volume
Koimonogatari - 1 Volume
Tsukimonogatari - 1 Volume
Koyomimonogatari - 1 Volumes
Owarimonogatari - 3 Volumes
Zoku Owarimonogatari - 1 Volume
Orokamonogatari - 1 Volume
Wazamonogatari - 1 Volume
Nademonogatari - 1 Volume
Musubimonogatari - 1 Volume
Shinobumonogatari - 1 Volume
Yoimonogatari - 1 Volume
Amarimonogatari - 1 Volume
Ougimonogatari - 1 Volume
Shinomonogatari - 2 Volumes
Ikusamonogatari - 1 Volume

Vertical's Release:
01) Kizumonogatari: Wound Tale (1 Vol)
02) Bakemonogatari: Monster Tale (3 Vols)
03) Nisemonogatari: Fake Tale (2 Vols)
04) Nekomonogatari: Cat Tale Black & White (2 Vols)
05) Kabukimonogatari: Dandy Tale (1 Vol)
06) Hanamonogatari: Flower Tale (1 Vol)
07) Otorimonogatari: Decoy Tale (1 Vol)
08) Onimonogatari: Demon Tale (1 Vol)
09) Koimonogatari: Love Tale (1 Vol)
10) Tsukimonogatari: Possession Tale (1 Vol)
11) Koyomimonogatari: Calendar Tale (2 Vols)
12) Owarimonogatari: End Tale - (3 Vols)
13) Zoku Owarimonogatari: End Tale - Cont. (1 Vol)