I am starting to build an entire section with free finance lessons (Click here).  I will start from the very beginning and introduce you to Time Value of Money concepts.  I will build from showing the Net Present Value involving a single cash flow one period away, to annuity problems, including examples of bonds and mortgages, to perpetuity problems, to very complex mixed problems.  Please continue to check back for more free lessons.  I encourage you to look at the Store for finance videos that will work nicely with the free written lessons to help you master Time Value of Money.   I also have free samples of several videos on YouTube (Click here).