Education
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.
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.
Her work is described as "fairytale like and poetic, but also sometimes bizarre and realistic." Born in Mojokerto, Cosijn returned with her family to The Netherlands in 1946. In 1956 she started her career as ceramist at the De Koninklijke Porceleyne Fles as assistant in the Experimental Division. After a the year 1969-1970 in Jamaica, Cosijn and Meijers returned to Petten.
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." According to Breitbarth (2009) Cosijn always "deliberately pushed the boundaries, to explore them, to try and possibly to circumvent a ruse.
In her work frontiers where crossed numerous times. Foreign example between the two-dimensional character of the drawing and the three-dimensional data of the bowl.
Or when drawing the ribs meet at a polygonal box and thus forced the corner store.