The mission of lowering greenhouse gas emissions (GHG) can be achieved by displacing fossil fuel usage from the transport sector. Fossil energy is limited in origin and running out of sources. Parallelly, the use of fossil energy has negative impacts on the atmosphere. The use of alternative fuels became a necessity. The members of the alcohol family are methanol, ethanol, butanol, pentanol, etc. Among the various options, the alcohol family is an emerging solution, as their physical-chemical properties are superior to conventional diesel and gasoline. From a sustainability viewpoint, alcohol is preferable as they possess inherent oxygen in their molecules, which lowers exhaust emissions. The book covers mechanical, chemical, and biochemical Processes used for alcohol production. It also discusses current developments, barriers, and prospects in alcohol production and its utilization aspects.