From site: This free bookkeeping tutorial is geared to business owners, managers, and individuals who have not had any formal bookkeeping training or on the job experience and need or want to learn the basics of bookkeeping. In other words, this tutorial is for beginners (newbies) or those needing a quick refresher and is only an introduction into the world of accounting. They say a little knowledge is a dangerous thing. Well my goal is to make you dangerous.