Jancis Robinson (and friends) has just released a massive tome of Ampelography (Wine Grapes) which weighs in at a massive 2.66 kg. This books investigates the intriguing world of wine grapes and looks at the DNA, history and origins of hundreds of different varietiesโฆand you thought there was only Chardonnay and Cabernet. More about this book at be found at Wine Grapes online.
Andrew Jefford of Decanter also does a great review on Decanter.