Born in Stockholm, and raised in New York with summers in New England, Sondra was immersed and encouraged in the arts from her earliest years. Her classically trained artist mother, Millie Wiskari, served as her first art teacher and instructed her in the basic elements and principles of composition and form.

Sondra studied fine and studio arts in college earning a BFA with minor studies in art history from CUNY. Among her professors were Harry Kramer and Rosemary Beck, with whom she had intensive courses in abstract and figurative painting. After college, she worked with designers Perry Ellis and Marc Jacobs, and discovered a passion for fiber arts which led to a freelance business creating unique artwear from hand-twisted and knit cashmere for private clients. 

After Seventh Avenue, she gravitated to the Metropolitan Museum of Art, and ultimately held the position of Senior Designer for the Merchandising Department. Working in concert with curatorial departments, she reveled in visiting behind-the-scenes storerooms to closely examine many remarkable works to gain inspiration for new products. Currently, as a freelance designer, she continues to work with museums to design exhibition merchandise, as well as her own line of hand-finished silk scarves.

At home in a wooded area on a lake in Rhode Island, she finds joy in the exploration of nature, and her restless eye sees new subjects in every aspect of the rural landscape. Throughout, Sondra often reaches back to her first love of art history for inspiration. From color theory, Japanese calligraphy, and pointillism, she combines the disciplines in her ongoing series of abstract works in ink and watercolor. More recently, the digital environment has enabled her to experiment with different methods of creating constructed, multi-layered works that combine photography, painting, and drawing, ultimately resulting in expressive, limited edition prints on natural fiber textiles or archival papers.