Lies Cosijn

After attending the a girls secondary school, she studied ceramics at the Institute of Applied Art in Amsterdam under Theo Dobbelman and Willem de Vries from 1951 to 1955.

[4] In 1956 she started her career as ceramist at the De Koninklijke Porceleyne Fles as assistant in the Experimental Division.

Cosijn made "stoneware clay by hand, then engraves the decor in sinter slips and bakes her work in an electric furnace to about 1160 degrees.

"[4] According to Breitbarth (2009) Cosijn always "deliberately pushed the boundaries, to explore them, to try and possibly to circumvent a ruse.

Also, the creation of space is a game with the limitation: it can literally by making a hole in the wall of the bowl, but also by drawing a window, door or curtain and so as to suggest a see-through.