Japan rail, rolling stock guide book

Hi,
I am trying to find some kind of rolling stock or railway guide book (not like travel guide) on Japanese railways.

I found some book called Encyclopedia of JR Rolling Stock but cant seem to buy it anywhere (checked Amazon too). And it seems a bit too "much" so to say.

Amy ideas? Been searching for a long time not sure where to look.

Jump to amazon.co.jp (not .com/.uk)
http://www.amazon.co.jp/gp/switch-language/site-directory/ref=topnav_s...

本・コミック・雑誌 (no need 洋書)
ジャンル一覧　→ 趣味・実用 → 鉄道

if kindle カテゴリー → 実用・ホビー → 鉄道

But most usuful info already into "wiki" 日本語 page billion texts with.
http://en.wikipedia.org/wiki/Rail_transport_in_Japan
http://ja.wikipedia.org/w/index.php?title=%E6%97%A5%E6%9C%AC%E3%81%AE%...
Translation is fastest way than finding.
Jump to bottom 関連項目
Rolling stock : 鉄道車両、国鉄・JRの車両形式の一覧
Railways : 鉄道路線、日本の鉄道路線一覧、日本の地域別鉄道路線一覧

Wow, very detailed instructions indeed. Thank tou very much!