Accounting firms record, classify, and summarize financial transactions for businesses. They employ accountants.
Accountancy is the process of communicating financial information about a business entity to users such as shareholders and managers. The communication is generally in the form of financial statements that show in money terms the economic resources under the control of management; the art lies in selecting the information that is relevant to the user and is reliable. The principles of accountancy are applied to business entities in three divisions of practical art, named accounting, bookkeeping, and auditing. The American Institute of Certified Public Accountants (AICPA) defines accountancy as "the art of recording, classifying, and summarizing in a significant manner and in terms of money, transactions and events which are, in part at least, of financial character, and interpreting the results thereof." Accounting is thousands of years old; the earliest accounting records, which date back more than 7,000 years, were found in Mesopotamia (Assyrians).
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