[TYPO3-shop] Book "Der TYPO3-Webshop" - how detailed is it?

[Christian Lerrahn (Cerebrum)]

Hi,
we need to set up a tt_products shop which uses variants. As we have
never used variants before and the tutorials don't seem to deal with
that too much, we were considering buying the book "Der
TYPO3-Webshop" (there are 2 German speakers around). However, the table
of contents doesn't really reveal if variants are explained in depth.
Would it give us the information we need to set up something similar to
http://www.sonnenschutzfolien-shop.de/ ?

Cheers,
Christian