John Baxter is a freelance truck journalist and serves as the technical director of Advance Diesel Concepts, a small venture that is developing a stratified-charge-compression ignition combustion system that will shortly be tested at Argonne National Laboratory. He is a full member of SAE International and a member of the Truck Writers of North America (TWNA) and serves on its Technical Achievement Award committee. Over his long career, he has been employed by a number of the major truck industry publications.