Came across Mike Raine's book Nature of Snowdonia, whilst at Plas y Brenin recently. A great introduction to the upland environment, for anyone working towards ML or IML awards, or just interested in knowing more about Snowdonia. Has lots of interesting tit-bits about rocks, birds, insects, flowers, fungi, mosses & lichens and the impact of man in the mountains. Easy to dip into, not too technical - to be recommended.