Joanna Koerten (1650–1715) was a Dutch artist who was known for creating intricate paper cutting silhouettes against a dark background. She was married to Adrian Block. Themes included scenes from nature – both land and sea, portraits and religion. Besides paper cutting, she was also a painter, made wax models, was proficient in engraving glass and crystal with a diamond, embroidery, and a draughtswoman. Her clients included many prominent personalities from that time such as The Empress of Germany, Peter the Great from Russia and William III from England. Her works were displayed in her husband’s shop from where she worked. Today about fifteen pieces of her work survive and are on display in museums in the cities of Leiden, The Hague, Loosdrecht, and Hoorn.