Rating: 

There are several ways you can get this onto your iPhone to read it at your leisure. If you choose to buy the electronic version you are able to download 3 different formats. One format is PDF which you can read on the iPhone several different ways. One is to email it to yourself as an attachment and read it within the Mail app. A second way to use a file storarge app like DataCase or (free) AirSharing. You can then transfer the PDF to a file folder on your iPhone and open it up for reading within the DataCase or AirSharing apps. The disadvantage with PDFs is that the hyperlinks within the PDF don't work and the only way to move to a new section is to scroll down starting from the beginning. This quickly gets tedious in a 200+ page book.

A better way is to use the EPUB file format. This has the advantage that you can pull up a chapter outline and jump to those sections directly. You can use the (free) Stanza app to read EPUB files on the iPhone. On a Mac you can transfer the file from your computer to the iPhone by placing in within your 'Sites' folder and activating Personal Web Sharing in the System Preferences. When you select 'Personal Web Sharing' the URL to your Sites folder will be listed. You can then transfer the file by opening the Stanza app on the iPhone and selecing 'Download book at URL' option under the tools icon on the Library page.

Hope this helps!