For all the importance we place on text, it's an indisputable fact that images are processed in the brain faster than words. Hence the rise and rise of the infographic which, at its best, transforms complex information into graphics that are both easy to grasp and visually appealing. No wonder magazine readers and web visitors love them.
Every designer knows that a good font not only can mask minor problems in an illustration but also make the difference between common and great piece of work. It gives you a balance between readability and design, so you need to choose it well.
Color in design is very subjective. What evokes one reaction in one person may evoke a very different reaction in somone else. Sometimes this is due to personal preference, and other times due to cultural background.
Quick great adivce to understand the psychology of colour.
Ex. "Use warm colors in your designs to reflect passion, happiness, enthusiasm, and energy."
Ever wonder why you respond to certain images? This explains it and shows you how you can make it work for you! See? That's why I love black, yellow, & turcquoise!
Resource via @bakerbk
Attitude, commentary, & opinions via @GwynethJones