In reply to Removed UserNangadreams:
The guidebook is Mani Nude 2 - unless there's a 3, now.
There's some great climbing in the Aosta Valley but there's also some real crap - no expense spared when it comes to manufacturing holds. It'd help to know what grades you're looking for. However, as a starter, Machaby, Lomasti, Arnad, Carogne and Gettaz are all good crags in the 5, 6 and 7 range.