An income statement reports the net income or net loss for a specific period of time. Net income/loss is figured by revenue-expenses.

A balance sheet reports the balances in the permanent accounts at the end of the period. It reports the assets of the business and the claims against those assets on a specific date.. for example what a business owns, owes and is worth. 

A statement of changes in owner's equity summarizes changes in the owners capital account as a result of business transactions that occur during a period, for example revenue, expenses and withdrawals. 

A statement of cash flows summarizes; the amount of cash the business took in, the source of cash, the amount of cash the business paid out and the uses of cash.