Mods - if this is unacceptable advertising please kill it with my apologies.
If you missed GURPS Traveller books when they were available from e23/W23, you may by interested to know that Bundle of Holding is doing two GURPS Traveller offers (until Monday July 18).
https://bundleofholding.com/presents/GURPSTrav1
https://bundleofholding.com/presents/GURPSTrav2
including the excellent GT Far Trader, for my money the best book on trade in RPGs that I've ever read.