This product is a lot of 30 vintage Ballantine's Illustrated History books about World War II. The books are paperback and were published by Ballantine Books in the 1970s. They cover various topics related to the war, including aviation, military campaigns, political extremism, and historic figures. The books are intended for young adults, ages 9-12, and adults. They are written in English and feature illustrations. The authors are mixed, and the books were published in the United States.