.epub - Basically any reader will be able to read this, you can read it on a Mac or PC
.mobi- This is a Kindle version formatted for the Kindle Reader
.pdf - It also comes as a pdf document
I hope the book lives up to your expectations, I wanted to add more, but I had to stop. It's currently almost 19mb for the Kindle and it's my fervent hope that the book helps.
Merry X'mas everyone I am definitely going to have a nice cold drink after this.