Two Things by Loren Wiseman

Traveller 3D: Mapping the Solid Subsector Using ChView by Christopher Thrash
For those who are tired of a two-dimensional campaign.

Featherweight Fleets by Robert Prior
How to create starship models that look good on paper.

Supplements 1-13: The Classic Supplements by Dominic Mooney
The second volume in the Classic Traveller Reprint Series.