“The first bookmobile is believed to have appeared in Warrington, England in the late 1850s. It was a horse-drawn cart, and lent about 12,000 books during its first year of service. Later, mobile libraries were installed inside vehicles and reached the height of their popularity in the mid-20th century when they had become a part of Americal life.
Although bookmobiles are still operated in some parts of the world by libraries, schools, activists, and other organizations, they are widely thought to be an outdated service due to high costs, advanced technology and impracticality.”-from source If you want to see more of these throwback mobile libraries, check the link below: