M. R. JAMES is profiled by Mark Gatiss in an interview in New Statesman: The dead of night: how to write the perfect ghost story: Mark Gatiss tells Robin Ince about his love of MR James.
Montague Rhodes James was also a very important specialist in the study of Old Testament Pseudepigrapha and New Testament Apocrypha.
Background on James's scholarly work and his ghost stories is here, here, here, here, here, here, and here.
UPDATE: Related? Archaeologist Tired Of Unearthing Unspeakable Ancient Evils (The Onion). Yeah, I hate it when that happens. You can't be too careful about reading those ancient manuscripts aloud.
(The latter via Francis DeBlauwe on Facebook.)