This book is a vital tool for all researching or studying the field of biofuel and renewable energy as it gives incredible insights into emerging trends and concepts related to it. Biofuel is the new form of green energy, which is generated from plants, and plant related activities, like agriculture, cellulosic biomass, bioethanol fermentation, etc. It can be derived from domestic waste, commercial and even industrial waste. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included in this book. It is a vital tool for all researching and studying this field.