From the back of the book:
The Blood of Dragons Flows through Your Veins
In ages past, dragons ruled supreme. Now their distant scions, the races and individuals who carry their blood, live among the great empires of the world, where the forge their own g;orious legacies. You can be among them. Embrace your draconic heritage, and the spoils of the world can be yours.
This supplement for the D&D game provides detailed information on the psychology, society, culture, behavior, religion, and folklore of the dragonblooded races, including kobolds and half-dragons. This book introduces two new player character races: the dragonborn (existing characters reborn in a new draconic form to combat and destroy the spawn of Tiamat) and the spellscales (artistic, philosophical beings with a penchant for sorcery and a thirst for new experiences). It also provides new prestige classes, feats, spells, magic items, equipment, and guidelines for crafting adventures and campaigns involving dragonblood races.
Expanded by;
Kobolds: Of Traps and Perfection
Kobolds: Playing to their Strengths