I need advice for the best books available on Product Management.

Hi, I have been recently promoted to the post of Product Manager for a web product from my ex-post of Information Architect which was the sub-domain of the product management post. Though it’s a big challenge itself but it’s a big opportunity for me too. I am determined for my success and ready to embrace the responsibilities associated with this roll up but have no or little experience about product management. What I need from you guys is to please suggest me any article, book or other resource to polish my product management skills.