This is my favorite MegaTraveller product for introducing people to the game. Which is why I own 4 dead tree copies... It combines the Library data, equipment catalogue, and the Travel Flowcharts, plus the full UWP list for the Spinward Marches. It's one of three core rulebooks for Megatraveller. Having the PDF, however, has allowed easier use. I've hardly cracked the dead tree copies since getting the PDF.
[4 of 5 Stars!]