I bought this for the web downloadable content, which turned out to be non-existant. After a call to customer service I learned that this book has been marked to go out of print by the publisher and the accompanying content was taken off the website. To be able to get the content that goes along with the book, customer service needs to contact the publisher to see if they even have the files in the first place. I was told to expect a phone call in 48hrs, if there is no content the book goes back.Be wary if you need the content that goes along with this book. You may not be able to get it.