This document discusses how libraries must constantly adapt to changing user demands and technologies. It begins by comparing adapting to changing technologies to a runner encountering hills - some libraries can speed through changes, some maintain their pace, and others fall behind. Whether a library adapts well depends on its energy level and training through budget and preparation. The document then summarizes several technology trends libraries must address, including information technology, social media, mobile devices, and user expectations of convenience. It provides examples of how libraries can meet these changing demands.