Attention: this product you are seeing now 052169308X contains: - Book - 2 audio CDs
I would like to understand why Amazon doesn't update the description. It's very confusing... and very tricky. If you don't believe me, google for the product ISBN 052169308X You will see the description in other web sites: "Cambridge IELTS 6 Self-Study Pack (Student's Book with answers and Audio CDs (2))"
It's why this book is called Self study pack, because it's complete and you don't need a teacher's book with answers and audio cds.
I sent an email to Amazon and they said: "we confirm that this book doesn't have the Audio CD". I called them and got the same answer. But they are completely wrong...
I then decided to buy it anyway and I was right: I received the book and 2 audio CDs.
There is another product (you can see it on Amazon as well), the ISBN is 0521693071 and it refers ONLY to the Student book. This book is the same you get when you buy the product 052169308X.
So, please, don't make a mistake and if you want the book and the audio CDs, this is the one. Always search the Internet if you are not sure.