The Way of Kolinahr: The Vulcans (1998)

From the text:

"The way of Kolinahr includes detailed information on Vulcan history, society and culture, providing the most comprehensive look to date at this fascinating world and its people.

It includes:

- Guidelines ofr creating and playing Vulcan characters, complete with numerous new templates, overlays, and background histories.

- A detailed look at the planet Vulcan, its history, politics, and ongoing role with the United Federation of Planets.

- In-depth treatments on the Vulcan philosophical schools and their impact on the development of the planet and its people.

- Comprehensive write-ups on teh ancient Vulcan psionic disciplines, including many new psionic talents and abilities for characters.

- New Vulcan technology and psionic devices, supporting cast characters, locations for players to visit, information on running extended Vulcan series, and more!