The story centers on Koyomi Araragi, a third year high school student who has recently survived a vampire attack, and finds himself mixed up with all kinds of apparitions: gods, ghosts, myths, and spirits. 

Story's Chronological Order (from KissAnime user):

1. Kizumonogatari -Movie-

2. Nekomonogatari: Kuro

3. Bakemonogatari

4. Nisemonogatari

5. Monogatari Series Second Season

--Nekomonogatari: Shiro

--Kabukimonogatari

--Otorimonogatari

--Onimonogatari

--Koimonogatari

6. Hanamonogatari should be between Kabuki and Otori

7.Tsukimonogatari

(Onimonogatari and Nekomonogatari: Shiro events happen at the same time)