If someone has online book store and his products are only books then can we add multiple schema tags in one section. For example can we add "schema.org/products" and also "schema.org/books". Will it work? Thanks in Advance!
For microdata, I think it's no problem. Product should be the parent where Book is the child. Anyway, test your markup using this tool http://www.google.com/webmasters/tools/richsnippets
@deveshnag what did you learn and conclude then? Did it take you to using forward slash schemas like those touched upon ultra vaguely on this page > http://www.schema.org/docs/extension.html or did you find other structures or combinations of structures and schemas that worked out better? The scope with "books" alone seems to me to be quite broad and gives a vast array of possibilities to use and try does it not? Certainly a lot more than the mere forward slash example would imply...