There's more to the TTA universe, Mr Cowley has fleshed it out quite a bit, but this is the most famous book.
Terran Trade Authority: Spacecraft 2000 to 2100 AD by Stewart Cowley
https://archive.org/details/terrantradeauthorityhandbookspacecraft2000to2100ad
3 Comments
Arghblarg@lemmy.ca · 6 pts · 1y
Check out "Spacewreck" too: https://archive.org/details/terrantradeauthorityhandbookspacewreck
Scallops@ttrpg.network · 2 pts · 1y
This is gorgeous, thank you.
Scallops@ttrpg.network · 3 pts · 1y
There's also a heavily modified d20 RPG launched in 2006. I don't know much about it.