I am using Amazon API, i m searching books according to title/ISBN/author, its working fine now i want to get books according to categories for eg Arts books,Digital Books,Mathematics etc, i have seen on amazonwebservice documentation that category comes in two places in Request Object SearchIndex and in Response Object's Product Group but in both of these objects i am getting Books(which is category of item which is searched) but i want categories of books
Can anyone provide me some help