From the back cover:
Each JTAS volume is a treasure trove of information and game additions for Traveller, including adventures, new ships, alien creatures from across Charted Space, philosophical musings on the big empires, histories, different takes on familiar equipment, new vehicles, characters to be met in starports, playable alien races, and much, much more...
Amongst the many articles in Volume Two, you will find:
The Githiasko, for those wanting to try a truly alien playable race
Last Flight of the Themis, an adventure where you will discover the fate of a crashed starship
Battle Fleets of the Marches
The Quiet Vigilance Patrol Vessel, to safeguard the far reaches of valuable systems
Airstrike, a complete guide to raining death upon your enemies
A detailed guide on the exotic atmospheres of strange worlds