How to drft a poster? (poster making)

A poster is a representation of an announcement, an advertisement, etc. A poster must be capable of catching the viewer's attention and must consist of necessary information that is to be communicated. 

There is no format of a poster. However, here are a few points that you must keep in mind while making a poster:

• It should be appealing.
• It should have catchy slogans or words.
• It should be colourful.
• Information can be communicated through pictures or diagrams.
• All important details must be conveyed.

Hope this helps!