Pick a Circle, Gather Squares: A Fall Harvest of Shapes by Felicia Sanzari Chernesky, illustrated by Susan Swan is a study of shapes.
With the rhyming text, the father and children find different shapes of all sizes while they are on their autumn excursion.
The illustrations are simply wonderful. I love texture and color and Susan Swan really has winning pictures. There are layers and textures, color and more texure and layers. The art is done with digital cut paper, and mixed media.