In reply to Harry_Pymont:
Plaisir West covers sport routes at 4 crags ranging from 5a to 7c. It has an introduction to each crag in German, French and Italian, but route details are pictorial, so still useful even if your languages are not that great.
If staying at KISC then it would be worth asking the Programme Office if there are other local guides (many areas have them), or if not then asking at the Tourist Info Office.