I thought to appear for the SCJP6.0 exam.I saw the famous book for it.I thought to buy the SCJP FOR JAVA6.0 STUDY GUIDE.In so many web sites authors reviewed it is the best book.So I thought to buy through online.In Amazon.com it costs $27.13(approx Rs 1350) and in Flipkart it cost just Rs 431 only.Which one i want to buy.Why there is that much cost difference.Please tell me whether the content in both books are same or not.I want to prepare for the exam.