I must have bought The Big City soon after it was published in 1962, when Penguin was branching out from its then standard paperback format into slightly larger books with pictures, often cartoons. It cost me 4 shillings, and it is still on our shelves next to the bathroom, reserved for ‘rather special’ titles, to be revisited every few years with wonderment and nostalgia for a now-vanished post-war Britain.