Piet Klaasse - Frogs - Sold

Piet Klaasse (Sloten, 1918 - Eemnes, 2001) was a Dutch illustrator, watercolourist, graphic artist, graphic designer, lithographer, painter, draftsman, drawing teacher and child prodigy.
Piet Klaase has been drawing since his childhood, filling his sketchbooks with them.
By the age of eleven, he was already performing as a speed artist; Klaasse, known as the "youngest artist in the world," made speed drawings during children's performances at the Kurhaus.

He taught for 34 years at the Rietveld Academy and its predecessor, from 1947 to 1981. Klaasse called himself a “primitive follower of observation”.
He achieved great fame with his drawings and watercolors of horses and jazz musicians.
Often drawing on the spot. Drawing something well always required the greatest effort, as he stated. He worked endlessly on his drawings. Sometimes he'd make changes just before an exhibition opened.