According to Black Book, consumers have to subscribe to the company's services in order to find the Black Book value of used cars. Consumers can subscribe to a number of different services, including used car and light truck and old car, which is for vehicles eight to 15 years old.
Black Book also states that data is updated on a daily basis and can be delivered in a few different forms. The company has a mobile app, as well as an online service where car values can be obtained. Black Book also prints a hard copy version and distributes it on a weekly basis throughout the country.