Book excerpt: This edited book presents nanotechnology-based approaches to improve quality of biofuels production. It covers the use of different nanomaterials in various biofuels production methods and their sustainable utility analysis to improve production of biofuels at economical and mass scale. Environmentally friendly, low cost, and synthesis via green and renewable resources are the main key features covered by this book. Advantages and sustainability scope of green and renewable material to synthesize nanomaterial and reduction in synthesis cost over to chemical synthesis cost have been discussed in this book. The book also explores various green synthesis possibilities to synthesize nanomaterials that are frequently involved in biofuels production process as catalysts. Various feasible mechanisms have also been explained. Maximum and sustainable use of green nanomaterials at every step of biofuels production is also one of the major focuses of this book. It covers mega audiences, which include academician, researchers, and industries people. This book will be highly interesting for researchers and scientists as well as related industries.