Start with How to Do Your eBay Taxes in 5 Minutes (No More Line by Line) (15 min, Daily Refinement), then Everything Resellers Need to Know About Taxes and Bookkeeping (27 min, Daily Refinement). All 365 lessons here are free, from the teachers' own official uploads. You'll need receipt scanner, accordion file organiser (about $115 of kit). The book to keep beside you: J.K. Lasser's Small Business Taxes by Barbara Weltman.