Siegfried Woldhek is a Dutch artist, illustrator, cartoonist, and former museum director. Born on May 14, 1951, in the Netherlands, he is known for his unique artistic style and passion for natural sciences. Woldhek served as editor-in-chief of the popular Dutch science magazine "Kijk" and later as director of the Naturalis Biodiversity Center. He gained international recognition for his 2009 TED Talk "How to recognize Leonardo da Vinci's self-portrait," where he presented a novel approach to identifying da Vinci's self-portraits through facial feature analysis. With his interdisciplinary background and unique insights into the intersection of art and science, Woldhek has become a significant figure in Dutch cultural and scientific circles.