booklet vs pamphlet

booklet and pamphlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
booklet	Yes	No	No	No
pamphlet	Yes	No	No	No

As nouns, booklet and pamphlet are synonyms defined as:

Other synonyms of booklet include brochure, folder, leaflet.

booklet (noun)	pamphlet (noun)
a small book usually having a paper cover	a brief treatise on a subject of interest; published in the form of a booklet
	a small book usually having a paper cover