The Land and Overland trilogy is a group of three science fantasy novels by Northern Irish writer Bob Shaw. The trilogy consists of the books The Ragged Astronauts (published in 1986), The Wooden Spaceships (1988) and The Fugitive Worlds (1989). In the United Kingdom, all three novels were originally published by Victor Gollancz. The Ragged Astronauts won the BSFA Award for best Novel in 1987. The setting for the trilogy is a pair of planets, Land and Overland, which orbit about a common centre of gravity, close enough to each other that they share a common atmosphere. Source: Wikipedia (en)