Less than 4 per cent of Britain's pubs have an interior of any real historic value, says a new book from English Heritage, Licensed to Sell: The History and Heritage of the Public House (£14.99). It explores some of these survivors in detail, with photographs of polished woodwork, embossed glass, tiled walls and mosaic floors. Captions highlight features you might otherwise miss: 'Note the spittoon trough in front of the counter for cigarette ends and other sundry waste.' That's in the 'grand saloon' of The Salisbury in Haringey, north London; not quite All Bar One, it seems. Pictured is The Salisbury's billiardroom ceiling.