edX. Course Description: edX provides a host of free bookkeeping courses through the Association of Chartered Certified Accountants (ACCA). Topics include an introduction to bookkeeping, intermediate bookkeeping, financial accounting and introduction to management accounting.

Bookkeeping is something that you either have to learn or outsource when you're running a business. Luckily, it's possible to learn how to manage your own books and there are a few notable benefits to tackling it yourself.

Yes, a bookkeeping business can be very profitable. In fact, ZipRecruiter reports that the national average income for an independent bookkeeper is $56,100, though some report income as high as $122,000. The cost of doing business is relatively low, mostly related to bookkeeping software, so profit margins are high.