Ilse Margareta Claesson (1907-1999) was a luminary in the sphere of Scandinavian ceramic design, known for her pioneering work at the Rörstrand porcelain factory in Sweden. With a career spanning several decades, Claesson was celebrated for her innovative glazing techniques and her ability to infuse traditional forms with a modernist sensibility. Her most acclaimed designs include the "Vas Blå" series and the "Skal" vases, both of which exemplify her mastery of color and form. These works not only showcase Claesson's artistic prowess but also her significant contribution to the evolution of 20th-century Scandinavian ceramics.