Internal Auditing: Assurance & Advisory Services, Sixth Edition: A Core Resource for Internal Auditors

Internal Auditing: Assurance & Advisory Services, Sixth Edition, by Michael Head, Paul Sobel, Cris Riddle, Mark Salamasick, and Urton Anderson, is one of the most comprehensive textbooks available for internal-audit professionals.

Published by The Institute of Internal Auditors, the sixth edition covers the complete internal-audit process—from governance, risk management, and internal controls to engagement planning, fieldwork, reporting, and follow-up.

A major advantage of this edition is its alignment with the 2024 Global Internal Audit Standards. That makes it especially valuable for internal auditors, audit managers, educators, and students who need current professional guidance rather than material based entirely on the former Standards.

The book also uses case studies and practical examples to connect internal-audit concepts with real organizational problems. It can serve as a college textbook, staff-training resource, or reference guide for an internal-audit department.

For anyone building a professional internal-audit library, Internal Auditing: Assurance & Advisory Services, Sixth Edition deserves serious consideration. It provides the technical foundation auditors need to evaluate governance, risk, and controls while delivering both assurance and advisory services.

The Accountware Group recommends this book for new internal auditors, experienced practitioners, audit managers, and instructors developing internal-audit training programs.