"Kelley Blue Book" Chinese translation for "Kelley Blue Book". Kelley Blue Book is a professional car evaluation company located in the United States, the magazine it publishes is also known as "Kelley Blue Book", the official website is mostly known as the car evaluation network. The site relies on Kelly Blue Book's benchmark status, a set of special KBB valuation model for used car evaluation, has become one of the websites / magazines that Americans and even people around the world must refer to when buying and selling used cars. The existing domestic fair price valuation engine has independently developed a linear weighted model of fair price data based on the KBB model, which is the most authoritative valuation method for the domestic used car market.