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Small books for big questions

Mikael Krogerus & Roman Tschäppeler

The Finnish-Swiss bestseller duoPortrait
The authors, columnists and keynote speakers Roman Tschäppeler and Mikael Krogerus, author photo 2021 by Guy Perrenoud

The world explained with a few strokes

«Swiss army knife of self-help books»Column in «DAS MAGAZIN»
Devops: The term is made up of development and operations. The DevOps mantra: «You build it, you run it», if you have an idea, then implement it and keep it running.

Keynotes on a chalkboard

"Substantial, clever, good-humoured".Live on stage
Keynote, lectures and shows: Mikael Krogerus and Roman Tschäppeler entertain with precise and smart observations - always sketched live on a chalkboard. Here at the Swiss Economic Forum 2021 in Interlaken.


"I want everyone to 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

Their contributions have made our customers and teams from Tokyo to Helsinki and Los Angeles to Zurich smile and - more importantly - think.

Barbara Friedli
Global Head of Communications & Sustainability Lead VITRA

"In MACHEN, Mikael Krogerus and Roman Tschäppeler show how to [...] cheerfully overcome obstacles."

Review about MACHEN

"...useful tips on everything from making small talk to effective apologies and how to come out with your best lines when it matters instead of five minutes after an interview ends."

Susan Flockhart
The Herald, on The Communication Book

"A very nice little book that is an instant read."

Dr. Miriam Meckel
Professor University of St. Gallen, about DECISIONS (50 Success Models)

"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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Roman Tschäppeler is a creative producer. Mikael Krogerus is a reporter. The two graduated from the Kaospilot School in Denmark. They are the authors of the international bestsellers «The Decision Book» and «The Communication Book». Their books have been published in 25 languages.