Principles of Accounting

From site: This free online textbook provides complete coverage of material found in most college-level financial accounting courses and managerial accounting courses.  In addition to the text, this principles of accounting book includes a number of interactive components to aid your learning process.  Most components are cross-linked for easy navigation.  You should spend a few minutes, beginning on the "chapters" page, to familiarize yourself with the overall content and web structure.