Investment income refers to the earnings generated from various types of investments, such as stocks, bonds, real estate, and mutual funds. This income can come in different forms, including interest payments, dividends, and rental income. Investors typically seek to grow their wealth over time by earning returns on their investments. The amount of investment income an individual receives can vary based on the type of investment and market conditions. For example, stocks may provide dividends, while bonds offer interest payments. Understanding these income sources is essential for effective financial planning and wealth management.