If you have not signed up to my 12 week bookkeeping course yet, it will give you the grounding for your bookkeeping career in a way you will not have seen anywhere else.
For the first time you will be able to really understand debits and credits by learning a wonderfully simple concept that ensures you get them the correct way round! (and for those new to bookkeeping, I can tell you right now, everyone gets them the wrong way round at first).
Once you have completed the course, or even after you have finished the first few weeks, if you want to become professionally qualified with a recognised global institute, I highly recommend the International Association of Bookkeepers. You can find more details on them over on their website here.