A wine guide is a resource that provides information about different types of wine, including their flavors, aromas, and food pairings. These guides often categorize wines by region, grape variety, or style, helping consumers make informed choices when selecting a bottle. They can be found in books, online articles, or apps, catering to both beginners and experienced wine enthusiasts. Many wine guides also include ratings and reviews from experts, such as sommeliers or wine critics, to help readers understand the quality of a wine. Some popular wine guides include Wine Spectator and Robert Parker's Wine Advocate, which are widely used in the wine community.