'Gripping, inventive and always unexpected pieces of art and critical thinking. The only risk we take at the Green European Journal is for Klaas’ work to simply steal away entirely the attention of our readers.'
© Laurent Standaert, Editor-in-Chief Green European Journal
'I’m always pleasantly surprised by the variety of Klaas’s work. While he has a recognizable style, he adapts quite nicely to concepts that go outside the norm. I look forward to each new solution.'
© Charles Hively, Founder 3x3 The Magazine of Contemporary Illustration