... chapter of The Essential Handbook takes the reader through the structure of the bookand highlights the pivotal role of the IIA standards. We have also provided a brief snapshot of the development of ... Dittenhofer, Mortimer A., Assisted by Scheiner James H. ( 199 6) Sawyer’s Internal Auditing, 4th edition, Florida: The Institute of Internal Auditors, p. 8.12 THE ESSENTIAL HANDBOOK OF INTERNAL AUDITING ManagersSupervisorsOperational ... AUDITING 10 THE ESSENTIAL HANDBOOK OF INTERNAL AUDITING 3. Internal Auditing (2002) Distance Learning Module, I nstitute of Internal Auditors UK&Ireland.4. Moeller, Robert and Witt, Herbert ( 199 9)...