A new book called, simply, Concrete, explores the many forms that the material can take. "Yes, concrete can be cold and imposing - but as the 175 structures in the book attest, it can also be colorful, playful and delicate," reads the book review. And here's your industry fact for today, also contained in the review: About 265 billion cubic feet of concrete are produced annually - that comes out to about 35 cubic feet for every person on the planet.