This book gives a broad overview of the key topics in this field of study, approaching them from a technical and economic angle giving the reader a comprehensive insight into biofuels as a whole. Dealing specifically with liquid and gaseous biofuels that can be produced from renewable resources this text also gives a summary of the past, present and future production technologies and applications of biofuels. This book is particularly relevant as it highlights the extensive debate of the on-going global needs to find alternative fuels, making it not only a necessary text for working professionals and researchers in the field, but for anyone with an interest in sustaining the earth.