I will be attending a graduate school (masters program) in fall not sure where I will be accepted. I was wondering in the meantime what could I do to become more employable. I've been reading and it says that knowing certain types of programming languages is necessary such as R and sql. I really want to work in the finance industry and that's what I would like to focus on. Since I have the summer off I'd like to get to a head start. Basically what should I start doing?