＞I don't know what I should talk about. Are you guys talking about acronym?

I feel it does not understand well to you.
As a means to remember words, there is a method to draw them once in a picture.
When you write an image of a word in a picture, it tends easier to remain in your brain.
As you see a movie a lot of scenes remain in the impression, so when you memorize words it influences easy to memorize. A picture is a means to bring out memory.
The acronym is similar to a picture as a chance to draw out memory.