Lee's Guide to Interstellar Adventure (1983)

From the back cover:

The journals of the noted galactic wanderer Aramais P. Lee have now been converted into a referee's aid suitable for use in any Traveller campaign. LEE'S GUIDE (Vol. 1) provides full planetary specifications and detailed plot outlines for 10 worlds in which the situations taking place on the planet form the basis for a varied range of adventure opportunities, suitable for both small parties and large groups. Each world is also keyed for use with Game Designers' Workshop's Spinward Marches and Solomani Rim sectors. As an additional bonus, this volume also presents a series of adventures centered around the X-Boat system, the Imperium's primary communications network.

Whether you're new to Traveller, or an experienced referee looking for exciting new challenges, this book will provide months of planet-busting adventure.