Difference between Imagery and Metaphor

What is the difference between Imagery and Metaphor?

Imagery as a noun is the work of one who makes images or visible representation of objects; imitation work; images in general, or en masse. while Metaphor as a noun is the use of a word or phrase to refer to something that it isn't, invoking a direct similarity between the word or phrase used and the thing described, but in the case of english without the words like or as, which would imply a simile.

We hope you now know whether to use Imagery or Metaphor in your sentence.