Normal goods are goods for which demand increases as income increases, and decreases as income decreases. In other words, as people's income rises, they tend to buy more of these goods, and as their income falls, they tend to buy less of them. Examples of normal goods include clothing, food, and entertainment. As people earn more money, they have more disposable income to spend on these goods, which leads to an increase in demand. Conversely, if people's income decreases, they will have less money to spend on these goods, which leads to a decrease in demand. Normal goods are an important concept in economics, as they help to explain how changes in income affect consumer behavior and overall economic activity.