EARTH-TEC JORUNE is an overview of the technology brought to Jorune by the Earth colonists who "Settled" the planet thousands of years before. The book starts with listings of Earth-Tec companies and then describes the wealth of Earth-Tec items and Bio-Tec creatures found on the planet. Although not a complete compendium, there's no better a source for information about Earth-Tec and Bio-Tec on Jorune.