With the increasing mobility of today’s library users, websites are needed that are compatible and usable on mobile devices. Though the size of the screen has changed, Davidson and Robinson believe that the lessons learned from Steve Krug’s Don’t Make Me Think are relevant and can be applied to mobile websites. They examine mobile library webpages from around the country with an eye to Krug’s clear and practical tips and advice. McHale examines strategies that libraries can adapt to employ “Mobile First” (the mobile user at the heart of development) and “Responsive Web Design,” two emerging web development trends, and discusses the implications these approaches have on the delivery of online library services.