Chapbook is a generic term to cover a particular genre of pocket-sized booklet, popular from the sixteenth through to the later part of the 19th century. No exact definition can be applied.[1]
The term chap-book was formalized by bibliophiles of the 19th century, as a variety of ephemera (disposable printed material), popular or folk literature. It includes many kinds of printed material such as pamphlets, political and religious tracts, nursery rhymes, poetry, folk tales, children's literature and almanacs. Where there were illustrations, they would be popular prints. The term is derived from chapmen, a variety of peddler, who circulated such literature as part of their stock.[2][3]