A PMO library is a great resource. It is somewhere to store all your project management books and standards documents. If your PMO doesn’t have a library, have you thought about setting one up? Project team members interested in personal and professional development can borrow books. You can also keep reference copies of standards like A Guide to the Project Management Body of Knowledge, (PMBOK® Guide) – Fourth Edition, Project Management Institute Inc., 2008, or the PRINCE2 reference guides, or any other standard or methodology books that you use.