A standard choice for western readers, though files are technically in Amazon’s proprietary format, they function similarly to EPUBs on Kindle devices.
You can purchase and download official EPUB versions of the Monogatari light novels from the following retailers:
format, there are specific official channels and reading orders to follow. Official ePub Availability began releasing the official English translations of the Monogatari series in digital eBook formats. Retailers:
What book should I read first in the monogatari series? : r/LightNovels
Nekomonogatari (White) , Kabukimonogatari , Hanamonogatari , Otorimonogatari , Onimonogatari , Koimonogatari Tsubasa Tiger, Nadeko Medusa, Hitagi End