Thought I'd give wholehearted endorsement of Harry Karis' new book, "The Chateauneuf du Pape book". I just visited there and this book single handedly enriched my experience, deepened my knowledge, and expanded my appreciation of Chateauneuf du Pape wines.
Great gift for a wine lover.
DISCLOSURE: I have no affiliation with Harry or the book. After buying it, he did help me plan my trip.