Return from the past: High School's Subject - Accounting Principle

I have always hated accounting during lower form and was lucky enough during high school time not to have to take this subject. But as time goes by and when I dealt with so many accounting and investment needs, I can't get away but to feel a little regret not having to learn it during school time, which I would have all the time in the world to study on the subject.

Yes, being a programmer has been my dream for as long as I can remember when I first learnt about computer. But, I have never thought that accounting would play a crucial part of what I am developing about. Now, the subject is the main 'course' in my daily routine to look up into, because my company's primary product is an accounting system.

I may never have dreamt about it, but oddly enough, now I am spending sometime to teach myself accounting principle and got myself high school's book to learn from. I need to catch-up quick as this one doesn't have year end exam, but rather tested everyday by our customers.