Karl Ryberg

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Karl Ryberg

Karl Ryberg is qualified both as an architect and a psychologist. His speciality is using precision light for therapy and design.

Light is the very basis for the vigorous existence of most species and indispensable for navigation. With a speed of 300.000 kilometres per second it is the fastest message carrier in nature. Evolution developed eyesight 500 million years ago to facilitate survival.


Karl Ryberg is qualified both as an architect and a psychologist. His speciality is using precision light for therapy and design. He has invented a series of advanced therapeutic projectors and runs the Monocrom Institute for applied photonics in Stockholm.


Karl lectures worldwide on the creative use of light. He has written several books on the subject and has appeared many times in television and paper media. Karl speaks several languages and also reads Braille. He is a numismatist and paints water colours as a hobby.


His book ‘Light Your Life: The Art of using Light for Health and Happiness’ about how quality light can enhance your life for optimum health and well-being was published in the UK by Yellow Kite books in October 2018.


The book has been translated into 6 languages with the US edition published in February 2019 by Atria Books.


“This is timely advice”

The Daily Telegraph


Rights Sold

Yellow Kite/Hodder & Stoughton Limited (UK, Ireland & Commonwealth),Atria Books (US), Verlagsgruppe Droemer Knaur Gmbh & Co. Kg (Germany),Uitgeverij Unieboek  (Holland), Sperling & Kupfer Editori (Italy), Bertrand Editora (Portugal), Azbooka-Atticus  (Russia),Roca Editorial(Spain),