The only software you need is a version of Acrobat Reader, you will need it installed prior to receiving the document.
Download a free copy of Adobe Reader here: http://get.adobe.com/reader/.
After you pay for your book, there will be a link for you to download the book you purchased. If the book you ordered is not published yet, check the web site for the published date. When the book is published, you can go to your email and follow the link to get your download. You only need to download the book once. We have given you multiple downloads in case you needed to download again.
