Spiral shell

We just got through reading Swirl by Swirl: Spirals in Nature, a wonderful picture book written by Joyce Sidman with beautiful detailed scratch-board illustrations by Beth Krommes.  The illustrations are bold, colorful, and full of texture.  It is about reoccurring shapes in nature specifically the spiral.  The book show many examples, explains some of the functional benefits (for example an animal might curl up in a spiral to conserve heat), and celebrates the inherent beauty of spirals.  At the end it also explains spirals as mathematical patterns.  Continue reading