This is what I carry with me at all times (or at least when I have a pocket big enough!). I call it a small business portfolio. The closure is two pen loops, when the pen is in them, it is held shut. Remove the pen to open the book up. The interior has a business card pocket, 4x6" scratch pad for working out designs, and a small plastic 4x6" photo album so that I can show examples to whomever is interested. I just love it to tarnation!