I have been working with Create Space to make paperback copies of my books, Every Song Tells a Story and No Escape. It seemed to offer the most features for a print-on-demand site. The most time consuming part of the experience was proofing and formatting, though both are already in electronic format. No matter how many eyes go over a piece, it seems that something is always missed. The website was easy to use, the instructions clear, and the templates very useful. If you are considering self-publishing a hard copy, Create Space is worth a look.