Javede... how come you can't look inside some of the books on Amazon? I did that yesterday with that sweater book, the first one on your list, and I really like it. If you have Internet Explorer you should be able to look inside and get a preview. I also just found out yesterday that with my new Mozilla Firefox browser I CANNOT look inside a book. That took weeks to figure out!
As for books, I just joined Crafter's Choice to get FIVE yippee 5 books, 4 at $1 each. Claire Crompton's Knitter's Bible is one of them, and that is an excellent book. (I guess you can't do this coz you're in Germany?)
I spent days in the bookstore looking through all these books.
Elizabeth Zimmerman's Knitting Without Tears is a classic, very special, I'm getting that one through Amazon and also this site coz Amy gets a little percentage.
One of the other books I got is Big Book of Knitting Patterns by Sterling Publishers. I had that from the library and I figure with this book, you could design your own scarves or whatever. Oh oh oh, and Nicky Nicky... Epstein's Finishing Techniques is very cool, a new book. I personally wouldn't buy a book just for scarves, you can always get free patterns for those at Knitting Pattern Central online.