Retro Games Workshop Books

There is a thread on the Lead Adventures Forum about the Games Workshop terrain and tanks books. 

This book was published in 1996. It covered Warhammer and 40K terrain and buildings.

This one was published in 2003. It added coverage of terrain suitable for Lord of the Rings as well as Warhammer and 40K.

The "How To Paint Citadel Tanks" was published in 2009.