Stanza is good for books in epub format but not so good for PDF. (It interprets PDF more as a stream of text than as a set of pages, and you lose much formatting that you probably want.) But the iPhone/Touch itself has a good PDF viewer built into the OS.
Mail the PDFs to yourself as attachments, receive your email on the Touch, and open the attachment. There's your book.
For things available in epub format the procedure is:
- install the desktop version of Stanza on your computer
- open the files in desktop Stanza
- open Stanza on your mobile device (while on the same wifi network as your desktop)
- in mobile Stanza, go to Library (top level) and tap Shared Books. From there you can find the files that are open in desktop Stanza and download them to your mobile device.
More details at
Frequently Asked Questions | Lexcycle