Pamphleteer is a historical term for someone who creates or distributes pamphlets, unbound (and therefore inexpensive) booklets intended for wide circulation.
Pamphlets were used to broadcast the writer's opinions: to articulate a political ideology, for example, or to encourage people to vote for a particular politician. During times of political unrest, such as the French Revolution, pamphleteers were highly active in attempting to shape public opinion.
Before the advent of telecommunications, those with access to a printing press and a supply of paper often used pamphlets to widely disseminate their ideas.
Thomas Paine's pamphlets were influential in the history of the American Revolutionary War. 17th-century Dutch naval officer Witte Corneliszoon de With wrote papers mocking and praising his fellow officers. Poet and polemicist John Milton published pamphlets as well.