Question

explain the method of poster making

Answer 1

nothing, its simple just draw a picture RELATED to the topic and write a slogan that also MATCHES the topic, your slogan and picture must be relatable, at the same time be creative and original :)

Answer 2

A poster is any piece of printed paper designed to attached to a wall or vertical surface . typically poster include both textual and graphic elements although poster may be either wholly graphical or wholly text.