http://www.khantazi.org/Rec/TTABooks/TTABooks.html
When I was a kid, I received "Spacewreck" as a present from my grandparents. It was crucial to sparkle my interest in science fiction and probably my love for shmups too. Only later I discovered it was part of a series and got the others. (the fourth was never published in Italy)
The four Terran Trade books features some of the most beautiful and inspiring sci-fi illustrations I've ever seen. If you like Roger Dean, Celal Kandemiroglu, John Berkey, Dieter Rottermund, Oliver Frey, Peter Andrew Jones and in general amiga game covers (think "Psygnosis" look), you'll love these books. In fact, Tony Roberts, one of the artists involved in the TTA series, later painted Agony's cover.
I hope I'm not the only TTA fan around these parts!

http://en.wikipedia.org/wiki/Terran_Trade_Authority
http://www.bisbos.com/rocketscience/tta/
http://www.niflheim.net/tta/