A pamphlet is a small, thin booklet with a few pages, usually used to give information or advertise something. It is often free and easy to hand out.
From Middle English 'pamflet', originally the title of a popular short Latin love poem 'Pamphilus'. Because that story was copied as a small book, its name became a general word for any thin booklet.
The word 'pamphlet' comes from the name of an old love story that went viral in the Middle Ages. That little book was so widely copied that its title became the generic word for almost any slim booklet.
Complete word intelligence in one call. Free tier — 50 lookups/day.