One of the graphics I've used through the years is called the "pyramid diagram." I've also called it "chasing the library patron." It presents an image that shows how to build the market share of libraries, expressed as a percentage of households with an active library card. Here's the image (and clicking on it makes it bigger): (This uses the now defunct Douglas County Libraries logo, which I quite liked.) The basic idea is the base of the pyramid is what most public libraries in America do: open their doors, and offer a collection, reference services, a children's program, public classes and workshops, computers, and meeting space. In exchange, about 30-50% of the service area households will find them, often without any further efforts. (And usually because of early childhood experience with the library.) The next level is Public Relations, in which libraries get their branding act together, send out graphically consistent messages to the...