From the Back of the Book:
The Fourth Key To The Traveller Universe
*The Classic Traveller Short Adventures
*Compiled Into One Comprehensive Volume
Traveller: the science-fiction role-playing game... chronicles the events of the far future... of the Golden Age of the Third Imperium. Now the canon for this award-winning series is again available... the rules, the adventures, the supplements, the source books, and the boardgames, in convenient individual reference volumes.
User Summary:
Reprints all 6 GDW Double Adventure books in landscape format (originally published in digest form, so opposing pages are one sheet here), as well as Adventure 0, the two adventures slated for Double Adventure 7, "Memory Alpha" (apparently published in very limited numbers), and Special Supplements 1-3 (originally published in The Journal of the Traveller Aid Society).