I bought a book at Hatchards on Piccadilly the other day. I’m very fond of it – I’ve been going there since I was a kid – but it really is the prime bookshop of the Buffer Zone (that area of wine merchants, hatters, art dealers etc., around St. James’s Palace). If you don’t believe me, take a look at their picks of the season, packed with double-barrelled names and books on gardening. And no Da Vinci Code in sight.