Financial statements are a set of accounting reports that summarize the financial position, performance, and cash flows of a business. There are three main financial statements: the income statement, balance sheet, and cash flow statement. The income statement indicates the profitability of a business over a period of time such as a quarter, year, or month by showing revenue and expenses. It is important because it shows profitability and helps evaluate past performance and predict future performance for various stakeholders. The statement of profit and loss is an example income statement that lists revenue, costs, expenses, and net profit for a given period.