A Tom Collins is a classic cocktail made with gin, lemon juice, sugar, and carbonated water. It is typically served in a tall glass over ice and garnished with a slice of lemon and a cherry. The drink is known for its refreshing taste and is popular during warm weather. The origins of the Tom Collins date back to the 19th century, with various stories about its creation. It is often associated with the Jerry Thomas, a famous bartender who published one of the first cocktail books. The drink remains a staple in bars and is enjoyed by many cocktail enthusiasts.