This report discusses the importance of cognitive biases in the audit process and how they can improve the exercise of professional skepticism. The report also explains the fundamental ethical principle of objectivity. The Association of Chartered Certified Accountants (ACCA) is a global body for professional accountants that offers business-relevant qualifications to people around the world. It supports its members and students through a network of offices and centers, and promotes appropriate regulation of accounting and relevant research. ACCA was founded in 1904 and has a commitment to opportunity, diversity, innovation, integrity, and accountability. It prepares accountants for business through its range of qualifications and seeks to open up the profession to people of application, ability, and ambition.