I Consult the Intelligent Web and Mahout to understand CI Ch2

I read the Mahout in Action ch 2 first. that's contents very interesting .
As you know Mahout is open source to coding easily the recommendation algorithms in the retrieval information system

Mahout API is specialized by using in real system.
Thanks to Mahout concept and API , I have learn more about recommend DataSets and another simiar distance Algorithms I didn't know.

Second I read the Algorithms of Intelligent Web Ch 3
Suggestions and Recomendations  As I already mentioned before , This book Contents almost Same.

But I think Algorithms of Intellignet Web is more easily understandable.
But this book have more page. oops !

How can I read All of this book?  Oh jejus ? The books contents are too much to read