The only textbook to provide complete coverage of both the International Auditing and Assurance Standards Board and the Public Company Accounting Oversight Board, reflects the contemporary evolution of the audit process. New additions to the book include expert updates on key topics, such as the audit of accounting estimates, group audit, and the Integrated Audit. Supplemented by extra on-line resources, students using this established text will be well-equipped to be effective auditors and to understand the role of auditing in the business world.