Author

Koen De Jong

1 book, mostly fitness, for Dragon Door Publications, 2018

Koen de Jong is a Dutch author and the founder of Sportrusten, a training and wellness platform. He has written several books about running, breathing, recovery, and meditation, including Verademing, Ik, hardloper, and De Marathonrevolutie. He coauthored The Way of the Iceman with Wim Hof, bringing his writing on breathing, cold training, and health to an international audience.