A comprehensive report on the physical and mechanical properties of titanium boride (TiB), including many recent results that were largely determined in our research, is provided. Fully dense TiB was synthesized by reaction sintering of Ti and TiB2 powders. A bulk nanostructured TiB ceramic material having a microstructure composed of nanosized and interconnected TiB whiskers was created. The TiB produced by this method has properties comparable with that of certain commercial types of silicon nitride.