Font Licence use

All the fonts provided with (i.e., "bundled" with) Adobe applications have licenses that allow for embedding in PDF or EPS files.

If you are doing a book cover in Photoshop (not the best tool for that, but doable), to achieve the highest quality output for printing, you should save as a PDF file making sure that you keep text as text (i.e., don't flatten any layers). When you save as PDF, the text remains text, fonts used by the text are embedded in the PDF file, and vector shapes remain as vector. These factors will yield the highest quality for either subsequent display or printing of the content.

          - Dov

Ken,

If the font is not sent along with the artwork, yes; you may embed it in a PDF, or Layer > Type > Convert to Shapes in Photoshop.