Saturday Photo: Concrete, the Material That Builds Our World

This week I really got rolling on the newest project, a new book to be called Rock of Ages: How Concrete Built the World As We Know It. Making plans to attend a big convention of concrete types, looking at the photos I've taken over the years, reading a lot of notes, and trying to start writing.

This is one of the more humble uses of concrete, improving somebody's parking space.  There are a millions more, and I'm trying to bring some order into my presentation.  Should be an interesting challenge!