Audit Engagement Strategy - Driving Audit Value, Vol. III The best practice guide for implementing a value-added internal audit engagement strategy. Follow the strategic principles and become successful in achieving the objectives of the audit engagements. Apply the fundamental success principles described in this book and your audit engagements will generate the desired added value. drs. Hans Beumer has a Master degree in Business Economics and was educated and trained as a Dutch CPA, CIA, CISA, CRMA and CFE. Hans is a long-time Internal Audit, External Audit and Finance Management professional. During his 28 years' career, he was CAE for 16 years at the head offices of global operating companies, worked 6 years in public accounting and held other positions such as CFO. He published 4 books and 8 articles on the topic of best practice internal auditing.