SCJA Book?

Hi,

I'm preparing for my SCJA exam and I'm not sure what book should i get. I've read some good reviews on the Cameron McKenzie's book, but it seems there are 2.

Amazon
http://www.amazon.com/SCJA-Certification-Technology-ExamScam-com-Programmers/dp/1598726102

and

Barnes & Noble
http://www.barnesandnoble.com/w/cameron-mckenzies-scja-sun-certified-java-associate-cameron-w-mckenzie/1013458811#Details

Is there any difference between the 2?
If not, I prefer to get the one from Barnes and Noble

Thanks,

thanks.
but can you please guide me through SCJA exam preparation. how much time do i need to prepare for this kind of exam. also i am planning to take SCJP exam in future.
are there any dedicated PDF or study material free to download on internet. it should be strict as per the exam objectives. there are 8 chapters to be completed. please help me soon.

If you're buying from any of the major bookstores, you're going to be getting the latest version of the book, so have no fear. There are no versions of the older copy for sale from any retailers. So you're sure to get the latest and greatest!