This is the version of Traveller I started with:
It's available for free, right now (and that's Tenjar's affiliate link, because Tenkar pointed this out today.)
I had some issues with the set, mostly because the expansions assumed you had the three-book Deluxe Traveller boxed set. I paid $12 for the Starter set because $20 was crazy expensive for me. Even $12 was pocketbook breaking at the time, and cost me a lot of allowance. So I felt really burned when I'd get later books and they'd reference different books . . .
Still, it's a nice little set and it did get me going on Traveller. While it's free, just grab it.