Unshelved is a classic strip-style comic by Gene Ambaum and Bill Barnes. The strip focuses on Dewey, a teen librarian that works at the Mallville Public Library. Joining Dewey are his fellow staff members (Buddy the Book Beaver is my favourite) and regular library visitors. Unshelved is available online for free, including a daily email that you can subscribe to. Every Sunday the authors publish the Unshelved Book Club, a book review in the form of a comic strip.
Gene and Bill are regulars on the library conference circuit, which probably helps ensure that Unshelved continues to represent the daily experience of librarians! Their Conference Tips series is often published in the daily newsletter COGNotes that is distributed at the ALA Annual and Midwinter conferences.