Poster commonly designed for use in schools and offices that generally consist of a photograph centered in a rectangular frame with black background, a title in large text and a description in smaller text.
This kind of poster has been repeatedly parodied and it's a common meme along imageboards.
I lol'd so hard with this Motivational Poster
a picture that has a subtitle underneath. were originally used to motivate but the internet changed that by instead of making them they made funny jokes with the subtitle
guy: that Motivational Poster was pretty funny
other guy: yeah but it really didn't motivate.