In reply to Sam Edwards
I would also add my vote for Into The Silence - a tremendous piece of work. When I learned it was the result of ten years in its researching and writing I neither blinked nor gasped. I was surprised to read, above, it has inaccuracies - I'd genuinely like to know what they are. It was reading the Guardian's review for the second time that convinced me to get it, no mention of inaccuracies though. He did go through all the military archives, the bibliography is massive.
There's a copy in the library at Aber. They've also got a copy of Jim Perrin's Selected Climbing Essays too. Perrin visits the National Library mid-Jan.
May I also recommend Llyfer Aber/Aber Books at the top of town, upstairs has a good selection of climbing/mountaineering books.
Hwyel fawr
Peter Cooper, also of Aber.