Wine styles refer to the various categories of wine based on factors like grape variety, production methods, and flavor profiles. Common styles include red wine, white wine, rosé, and sparkling wine. Each style has unique characteristics, influenced by the grapes used and the region where they are grown. Additionally, wines can be classified by sweetness levels, such as dry, off-dry, and sweet. Other distinctions include still wines, which have no bubbles, and fortified wines, which have added alcohol. Understanding these styles helps consumers choose wines that suit their preferences and occasions.