- Patrick ClarkCreativity, hard work, and a desire to build something from nothing, are just a few key points I could say to define Keith Crewe’s Concrete Design Course. As a journeyman carpenter I wanted to branch out and take my skill set in a new direction, and with Keith’s expertise and invaluable insight, I feel that I can do that now. In this hands-on course, there is always a potential for projects to go wrong. Keith not only allows you to mess up, he also gives you the tools to come up with a practical solution. He also provides an intimate setting with lots of one on one instruction. I highly recommend this course to anyone looking into concrete design.