1. Easy way to test a new product, service, solution idea
  2. Easy to iterate a concept
  3. Easy to put in front of prospective customers for feedback: test, measure, learn
  4. Customer can become part of the design process ... pencil and paper and eraser
  5. Inexpensive ... time, money, resources
  6. Works for most any idea concept
  7. Flexible "size" (number of pages) although the fewer the better
  8. Can incorporate in the venture business plan, summary