Abstract: As a group, librarians are perilously close to being the oldest professionals in the U.S.-- older than the clergy or teaching faculty for example, though mercifully younger than marine architects. What's more, the population of librarians is also aging quickly, meaning that the profession is now entering a period of retirements higher than any in living memory. And for all that, the most compelling aspect of the demographics of librarianship is the emergence of a youth movement that is blurring the distinction between professional and support staff, eroding the relevance of the MLS degree, and creating a new class of library professionals who get far more money for far less library experience. And then there's Canada.