It’s essential that designers demonstrate execution of basic design principles so that clients receive designs that look professional and can be implemented in their brand.
Here are some resources about basic design principles.
Typography
Typography is the art and technique of arranging type to make written language legible, readable, and appealing when displayed. You can learn more about typography here.
Color theory is both the science and art of color. It explains how humans perceive color; how colors mix, match or clash; the subliminal (and often cultural) messages colors communicate; and the methods used to replicate color. Learn more about color theory here.
Composition
Composition is the placement or arrangement of visual elements or ingredients in a work of art. Read more about it here.
“Church, Taos Pueblo, New Mexico, 1941” by Ansel Adams in 1941, with a visible grid