Book excerpt: Providing detailed knowledge about fullerene nanowhiskers and the related low-dimensional fullerene nanomaterials, this book introduces tubular nanofibers made of fullerenes, "fullerene nanotubes," as well as the single crystalline thin film made of C60, called "fullerene nanosheet." It is the first publication featuring the fullerene nanowhiskers made of C60, C70, and C60 derivatives and so forth. It demonstrates the synthetic method (liquid–liquid interfacial precipitation method) and the physical and chemical properties such as electrical, mechanical, optical, magnetic, thermodynamic, and surface properties for the fullerene nanowhiskers, including their electronic device application.