In reply to Laurence Everitt:
I've one of the Pietra Luna books (can't remember which one, but it would have been from 2010-2013 as that's when we went - it's the one for the whole island with singlepitch and multipitch) and yes, it's not the easiest book to use. We did, however, find all the crags and routes we tried to. I'd suggest some pre-trip guidebook reading, map reading, and cross-referencing the two would be useful. Also, try to correlate with online resources. I think the main issue was finding the crags and parking places in the first place, once at a crag finding routes was easier. Of course, Supramonte is 'mountain' and thus finding crags is a bigger part of the game. Getting to Tiscali and the routes on the walk-in (sound of silence etc.) was fine.