Are there any simple or fairly short books about Kūkai? Including children's books
Can be academic in nature, but if there is something that isn't very difficult to understand for someone not particularly knowledgeable about all of the terminology in Buddhism, I would love to hear about it. In particular I am interested in reading more about his general life trajectory, as well as the things he did and his specific contributions to Buddhism
I’m open to books in Japanese as well if you know of any