Now Our Turn to Share

Jane really appreciates the great optical illusions and Escher-art book suggestions. She has added more than a few promising titles to her birthday wish list, so perhaps we’ll have some reviews to share in the months ahead. In the meantime, here’s a nifty YouTube clip we found. Jane was looking for help in drawing “impossible shapes”; I didn’t know what she meant until she showed me pictures in the Harold Jacobs Mathematics book. (Highly recommended, by the way—we have never used the Jacobs book