This document discusses different types of billing methods used in food and beverage outlets. It describes bill as a check, where the second copy of the food check is used as the bill. It also covers separate bills, bills with the order, prepaid bills using tickets, voucher bills where guests use credits, no charge bills sent to sponsoring companies, and deferred account bills sent after catering events. The key types of bills are those using duplicate food checks, separate itemized bills, and combining orders and bills onto a single sheet.