Complete Idiot"s Guide to... Invaluable advice for new users, and professional buyers and sellers. Millions of items - from homes to books to cars - are sold to millions of buyers on eBay. This high-profile, growing company continues to attract new users daily, and you need a comprehensive introduction to the site to explain how to set up an account; buy, sell, and bid; protect transactions; find the best deals; make a profit; utilize search results; and more.