Ok, first off, be warned, it's all in German, i.e. not a word of English in there. The patterns are gorgeous and really inspirational. There are loads of stranded patterns and all the patterns are charted, so it's definitely ok for a non German speaker knitter (like me) to use a little common sense and experience to knit these patterns. The charts are all in a little booklet, so you're probably better off making a photocopy of the booklet and leaving the charts somewhere safe, because if you lose those charts you'll never be able to knit the patterns.
The designs are pretty, practical and very engaging. Most of the patterns are aimed for more experienced knitters. I'm really glad that I bought this because this is one of my favourite books