John Stilgoe is just looking around. This is more difficult than it sounds, particularly in our mediated age, when advances in both theory and technology too often seek to replace the visual evidence before our own eyes rather than complement it. We are surrounded by landscapes charged with our past, and yet from our earliest schooldays we are instructed not to stare out the window. Someone who stops to look isn't only a rarity; he or she is suspect. Landscape...