A boy who is a poor visualizer will never make a good artist. A man who is a poor visualizer is out of place as a photographer or a picture salesman.
A Key for Selecting a Calling
No person with weak auditory images should follow music as a profession or attempt to sell phonographs or musical instruments or become a telephone or telegraph operator or stenographer.
No man who can but faintly imagine the taste of things should try to write advertisements for articles of food.
Remember the rule: To the mind you are seeking to convince or educate present your facts in as many different ways and as realistically as possible, so that there may be a variety of images, each serving as a clue to prompt the memory.
You can put this rule to practical use at once. Try it. You will be delighted with the result.