Several new and forthcoming books published by the National Academies Press (NAP) can now be read online through NAP's OpenBook feature, that allows readers to view full text of books (.html). The first listed here, "Effectiveness and Impact of Corporate Average Fuel Economy (CAFE) Standards", is an unedited pre-print. It gives the results of a the National Academies Transportation Research Board's recent investigation into the impacts of the CAFE program, which was passed in 1975 in response to oil shortages and required that auto manufacturers increase the sales-weighted average fuel economy for passenger cars and light-duty trucks.