Wanee,
Your topic is huge. The best suggestion I can give you is: you need to start buying some professional pastry books. There is alot of information and recipes already written on the topic of cookies, specificly ones made from puff pastry. Many of these chefs also have sections in their books on savory baked items too.
I'd suggest you look at:
www.chipsbooks.com they contain the best selection of professional baking books and don't have alot of amatuer books that could steer you wrong.
These books are very expensive, but well worth the price. Before you buy any, I'd be happy to tell you if the book you've choosen contains a fair amount of info. on your topic (seeing I own most of them).
HTH
Wendy