Conventional Fuel Sources: petroleum and heavy oil refining, petroleum products and fuels; Unconventional Fuel Sources: tar sand bitumen, coal and oil shale; Fuels from Biomass: history, biomass feedstocks, the chemistry of biomass, biofuels, a replacement for liquid fossil fuels, food versus fuels; A Biorefinery: properties of feedstocks from biomass sources, refinery configuration, individual units, products and properties; Biofuels: composition, variations with source, properties compared to fuels from petroleum, tar sand bitumen, coal and oil shale, meeting fuel specifications, performance