As an author and publisher (and new member of TAA) preparing manuscripts of my own design and assisting other authors to do the same, I needed a service that was cost-effective and efficient. After researching several different services, I selected CreateSpace.com, which is a part of Amazon, because it allowed me to print quality textbooks for pennies on the dollar. I also like this service because of the free ISBN number and the fact that if you intend to revise an edition you can lock in the ISBN number for subsequent editions.