The French Laundry, Very Expensive Restaurant, Yuntvill, California

Depending on local customs and the establishment, restaurants may or may not serve alcohol. Restaurants are often prohibited from selling alcohol without a meal by alcohol sale laws; such sale is considered to be activity for bars, which are meant to have more severe restrictions. Some restaurants are licensed to serve alcohol ("fully licensed"), and/or permit customers to "bring your own" alcohol (BYO / BYOB). In some places restaurant licenses may restrict service to beer, or wine and beer.
Restaurant guides
Restaurant guides review restaurants, often ranking them or providing information for consumer decisions (type of food, handicap accessibility, facilities, etc.). In 12th century Hangzhou (mentioned above as the location of the first restaurant), signs could often be found posted in the city square listing the restaurants in the area and local customer's opinions of the quality of their food. This was an occasion for bribery and even violence. One of the most famous contemporary guides, in Western Europe, is the Michelin series of guides which accord from 1 to 3 stars to restaurants they perceive to be of high culinary merit. Restaurants with stars in the Michelin guide are formal, expensive establishments; in general the more stars awarded, the higher the prices. The main competitor to the Michelin guide in Europe is the guidebook series published by Gault Millau. Unlike the Michelin guide which takes the restaurant décor and service into consideration with its rating, Gault Millau only judges the quality of the food. Its ratings are on a scale of 1 to 20, with 20 being the highest.