Make sure that you have the correct ebook reading software installed on your PDA. Each ebook page will inform you of the type of software that it uses. Most sites have a free download link to the correct software.
Connect your PDA to the computer with the USB cable. Attach one end of the cable to your PDA and attach the other end of the cable to the correct USB port on your computer.
Download any ebook reader software necessary. The ebook site will prompt you in directions on how to do this.
Open the ebook software on your PDA and sign onto the ebook site. If you do not already have a membership, you may be prompted to join at this time.
Download the ebook to your PDA by dragging the icon into the indicated spot or otherwise indicating which book you'd like to have, depending on the site's setup. The ebook will only take a couple of minutes to download into your reader.