Henriette Ronner-Knip

Henriette Ronner-Knip was a 19th-century Belgian-Dutch painter beloved for turning kittens into tiny household characters — pawing at a lace fan, tumbling into a porcelain bowl, exploring a painter's toolbox, or batting pearls off a dressing table. A handful of cards widen the cast to spaniel and terrier mothers with their puppies.

Fitting for cat lovers, art postcrossers, and anyone who wants a gentler, painterly alternative to photographs.