Chapbooks were small, inexpensive pamphlets popular in Europe and America from the 16th century until the mid-19th century. They contained of a variety of reading material, including folklore, reports of crimes, ballads, and Bible stories, and reveal much about popular culture at the time. Sold by itinerant agents known as “chapmen” for as little as a penny, they were typically unsigned, undated, and flimsy. After they were read, they were often put to use in what other ways?
Source: The Free Dictionary