What is the difference between espresso, cappuccino, and latte?

The main difference between espresso, cappuccino, and latte lies in the ratio of espresso to steamed milk and foam. Espresso is a strong, concentrated coffee made by forcing hot water through finely-ground coffee beans. Cappuccino has equal parts espresso, steamed milk, and foam. Latte has more steamed milk and less foam than a cappuccino.