First created by a Shanghai publisher in the 1920s, lian huan hua (which means "linked serial pictures") were a series of popular children's books known for their simplicity and heraldic subjects. These short volumes fell out of favor during the time of the Cultural Revolution in China, though Premier Zhou Enlai revived their development in the early 1970s as a propaganda tool. This particular digital collection comes from the Hamilton Library at the University of Hawaii at Manoa. The collection here includes mostly items from the year 1971 to 1975, and visitors will be glad to learn that there are over 500 images in this database. On the collection's homepage, visitors can check out a featured book cover, and then move along to browse around or perform their own search.