Do Not Erase: Mathematicians and their Chalkboards by Jessica Wynne is a beautiful photography book. Each leaf contains a photograph of a mathematician’s chalkboard and a short essay by that mathematician talking about their work, what is displayed, or something personal. Wynne’s work only looks at blackboards or chalkboards, not whiteboards. The entries vary from the prosaic, such as diagrams left over from an office hours session on elementary calculus, to snapshots of current work, to ...
