Monolingual Spanish (no Galician, no English). Doesn't give the height of the boulders. Some grades are missing. The access description is sometimes misguiding or dodgy, e.g. some tracks aren't accessible by car unless you've got an 4x4, and in fact, it's as fast to walk (sector camino en Cabo Prior for instance).
But it's the first and only guidebook published so far for this area.