On a random shelf scan, I spotted this excellent Kamen Rider book published by ポプラ社 -> Poplar. It's called the 仮面ライダー大図鑑 -> Kamen Rider Big Picture Book The cover advertises it as an all-in-one guide to Kamen Rider, and from the pictures and content, it's hard to argue.
|The book introduces the Kamen Riders + their villains, starting from 1-go.|
|Gorgeous photos of the heroes, villains, and bikes.|
|Stronger + baddies in Disco/Rocky/WWE/Come-hither poses.|
|Looks like some extended info about the Fourze Astro Switch. I hope I got that right - I'm no expert on the newer Riders.|
|Looks like a TV episode guide.|
here for 1,944 yen.