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Authors & Illustrators
Holger Rathgeber

Holger Rathgeber

Holger Rathgeber is a former Fortune 500 company executive. He has his own consulting practice, Team Rathgeber. His co-authored books with John Kotter include Our Iceberg Is Melting and That's Not How We Do It Here.

Books by Holger Rathgeber

Book cover for Our Iceberg Is Melting — Our Iceberg Is Melting