A leaflet is a single sheet of paper, usually printed on both sides, that contains information about a product or service. A pamphlet is a small booklet containing information about a product or service. Both leaflets and pamphlets are commonly used for marketing and advertising purposes.
A small,thin,unbound book made up of sheets of paper staple or stitched together usually having a paper cover or it is a single sheet which is printed on both sides and folded in half,in thirds or in fourths called(Leaflet).
Flyer is a type of paper advertisement used for wide distribution and typically posted, handed out on the street and distributed door-to-door through the mails and they are inexpensive form of marketing and promoting.