pamphlet

pamphlet short unbound or paper-bound book of from 64 to 96 pages. The pamphlet gained popularity as an instrument of religious or political controversy, giving the author and reader full benefit of freedom of the press. Relatively inexpensive to purchaser and publisher, it is less complicated to publish and therefore can be more timely than a hard-cover book. Several examples of this generally ephemeral literary form have proved to have permanent value (e.g., works by John Milton and Thomas Paine), and have been reprinted separately or in collections, such as the Harleian Miscellany (1744-46). See also chapbook .

pamphlet small treatise of smaller compass than a ‘book’ XIV; short treatise or booklet on a matter of current or temporary interest XVI. ME. pamflet, paunflet, in AL. panfletus; generalized use of Pamphilet, Panflet (in OF. and MDu. respectively), vernacular name of the L. amatory poem ‘Pamphilus seu de Amore’.
Hence pamphleteer (-EER1) XVII (†pamphleter XVI).