The 1960s folk revival can be held responsible for having a profound effect on British music and no single artist had more influence than Davy Graham. Credited with pioneering the DADGAD guitar tuning to be better able to play along with the traditional oud music he was hearing whilst traveling North Africa, Graham has been a heavy influence on many guitarists.
This is a mixture of Davy himself and some of the very long list who credit him as an influence.
If you’re unfamiliar with the folk sounds of the 60s, start growing your inner-beard, dust off the yoghurt-weaving manual, hit the goose and lay back.