Only some people use the Public Library of their municipality like a resource and a source of intelligence, and this is because the Public Libraries create much frustration in our clients: of course that to greater frustration, minor use and, therefore, greater forgetfulness. If we were not able to be useful, will be very difficult to convince the politicians of the necessity to invest in libraries. To less resources, greater difficulty in designing modern services and of utility and, like consequence, greater frustration in our clients. To understand and to assume this reality and the necessity to act to resist has it a vital importance.