[udayaprakash19]

bunch of fonts should more be like "bunch of fonts that they use on a regular basis" and I would like to incorporate your second comment into the slide if it is ok with you. I am making corrections in the app based on usability tests and thanks for pointing out the fb and twitter icons.

[ctbeiser]

I'd say "bunch of fonts that are widely used." Some designers have obscure favorites that they use regularly.

If you're really looking for a good grounding in HCI fundamentals, The Design of Everyday Things, The Humane Interface, and, oddly enough, the OS X Human Interface Guidelines are among the best. For type, try "The Elements of Typographic Style," and for a basic, general overview of some concepts you should understand, "The Universal Principles of Design" is, well, not bad.