About DR.Books®
Hans Peter Rühl, born 1963, is a Berlin-based instructor and consultant who has helped decisionmakers internationally to master business finance concepts. He developed the series under the registered trade name of DR.Books®.
Hans Peter Rühl, born 1963, is a Berlin-based instructor and consultant who has helped decisionmakers internationally to master business finance concepts. He developed the series under the registered trade name of DR.Books®.