Kelley Blue Book is a Irvine, California-based vehicle valuation and automotive research company that is recognized by both consumers and the automotive industry.

The company reports market value prices for new and used automobiles of all types, as well as motorcycles. For both new and used automobiles, KBB provides a Fair Market Range and Fair Purchase Price, based on actual transactions of what others are paying for a vehicle and adjusted regularly as market conditions change. For new automobiles, KBB also provides information about a car's MSRP and dealer invoice price. For used cars, KBB provides retail value, certified pre-owned value, trade-in value and private party value.Kelley Blue Book also offers expert and consumer vehicle reviews and ratings, and 5-Year Cost to Own information for new cars.