«Mikael Krogerus and Roman Tschäppeler show how to overcome obstacles with a smile.»
STERN
Review about THE COLLABORATION BOOK
«They make customers from Tokyo to Los Angeles smile and – more importantly – make them think.»
Barbara Friedli
Global Head of Communications & Sustainability Lead VITRA
«A nice little book that you immediately get engrossed in.»
Dr. Miriam Meckel
Professor at the University of St. Gallen, on THE DECISION BOOK (50 Erfolgsmodelle)
«Read this book for its invaluable content and irrepressible joy! And for the difference it can make in our world.»
Nancy Kline
Author of bestselling 'Time To Think' about The Communication Book
«...useful tips on everything from making small talk to effective apologies and how to come out with your best lines when it matters.»
Susan Flockhart
The Herald, on The Communication Book
«Compiled in a neat and concise “dip-in and out” anthology style, this is a very interesting and accessible volume.»
Irish Times
On The Test Book
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