May I suggest giving this course a runthrough? http://c.learncodethehardway.org/ http://c.learncodethehardway.org/ I read it to learn how to code, but one of

May I suggest giving this course a runthrough? http://c.learncodethehardway.org/ http://c.learncodethehardway.org/ I read it to learn how to code, but one of the useful things in it for you would be the fact that Zed starts to make you write unit tests for each new program he has you write. I think this is personally invaluable, and I took that skill with me when I took over QA duties at my job, where all testing was previously manual.