When I was a kid I got an abcess behind my eye, and had to spend about a week in hospital. One of the only things I had to entertain me was a whole bunch of audiobooks on tape, two of which were Red Dwarf books for some reason. When I got out I devoured the others I could find.
What I remember most clearly about them was that there was a really sharp difference in tone depending on whether Naylor or Grant was the main author - Grant was the more knockabout smeghead foul-mouthed metaphor guy, Naylor obviously wanted to go for a more serious sci-fi angle. Think the best one was Better Than Life - managed to marry the incredibly bleak setting with the working class humour successfully, which was also the show at its peak.