The learned David Porter, whom I have met once in the flesh and quite a few times by UseNet and email, who is a stalwart of l'Abri as well as being a keen boardgamer and a Squad Leader enthusiast, has recently published The Inklings Handbook. It looks like an essential read: A comprehensive guide to the lives, thought and writings of C.S. Lewis, JRR Tolkien, Charles Williams, Owen Barfield and their friends. The book falls into two parts: the first introducing the Inklings, with the second longer part in dictionary format, with many biographical articles, as well as substantial entries on the Inklings' writings, themes and theology.