Amazon KDP offers authors the opportunity to receive a single book proof copy of their book before purchase for free; however, you are NOT getting an exact copy of the book you will end up purchasing. You will be holding in your hands a "copy" of your book with a "Not for Resale" watermark, no hardcover option, and a UPC code added to the back cover. Additionally, you'll have to pay for shipping.
Here's what else Amazon offers (or, well, doesn't offer):
- Only 3 uncoated paper stock choices
- Inkjet printing
- Basic, automated file inspection
- Limited support via email
- Availability only to KDP