Looking for a book on German wine & producers

Can anyone help me, I’m looking for a book on German wine & producers. I have the Wine Atlas of Germany, but I’m not sure where to turn for broader strokes about the region and producers. Any tips?

http://www.amazon.com/Finest-Wines-Germany-Regional-Producers/dp/0520273222/ref=sr_1_1?ie=UTF8&qid=1416948078&sr=8-1&keywords=the+finest+wines+of+germany

A big “meh” to that book.

These are helpful:

http://rudiwiest.quexion.net/our-wines/

http://www.vomboden.com/portfolio.php

Also, http://www.larscarlberg.com/