This book provides detailed knowledge about fullerene nanowhiskers and the related low-dimensional fullerene nanomaterials. It introduces tubular nanofibers made of fullerenes, fullerene nanotubes, and single crystalline thin film made of C60, called fullerene nanosheet.Since the discovery of C60 in 1985, various fullerene molecules, including higher fullerenes such as C70, endohedral fullerenes, and fullerene derivatives have been synthesized. In 2001, a new form of crystalline carbon nanofiber, fullerene nanowhisker, was discovered. This book is the first publication featuring the fullerene nanowhiskers made of C60, C70, and C60 derivatives. The synthetic method (liquid-liquid interfacial precipitation method) and the physical and chemical properties such as electrical, mechanical, optical, magnetic, thermodynamic, and surface properties are shown for the fullerene nanowhiskers, including their electronic device application.