When it comes to graphic design job, there are many considerations. If you want to be a graphic designer, maybe a degree in graphic design is not necessary, but an understanding of the graphic design, including the elements and principles, will help you do better work as a designer, publisher, or visual communicator. Graphic design is the process and art of combining text and graphics and communicating an effective message in the design of logos, graphics, brochures, newsletters, posters, signs, and any other type of visual communication.
It is important to get the font size right. How big is it? There are potential negatives if text is either too small or too large. Take a look at mass or visual weight of graphic and text elements. The majority of the time it is how you will get your message across so it does need to stand out. Capitals obviously stand out more, but studies have shown that font where the first letter is a capital and the rest of the word has small lettering is easier to read. There are many styles of font, and this decision is just as important. What stands out, what is easiest to read, and simply what looks good should all be thought about.
If graphic design is on behalf of a company then the color schemes of the company and their logo should be used. What is the meaning of red? Which colors go well together? As with decorating a room, how colors go together needs to be thought about with graphic design.
Pictures need careful consideration. Choosing the wrong pictures is a missed opportunity as using the right pictures can be massively beneficial.
Get a better understanding of the basics of graphic design by studying the elements and principles of graphic design that govern effective design and page layout. They are not separate entities, but part of the same story.