As more users expect to use their mobile devices, librarians will want and need to develop the necessary skills to reach this growing user base. Mobile Devices: A Practical Guide for Librarians will aid libraries and librarians as they go through the process of planning, developing, implementing, marketing, and evaluating mobile services. Based on research and experience using and developing for mobile devices, this guides includes information and ideas regarding: -Why mobile technologies are important for libraries -Developing mobile websites and applications for specific mobile platforms such as iOS and Android using existing web technologies such as HTML, CSS, and Javascript -Using mobile devices for reference, library instruction, and shelf reading -Marketing strategies to make users aware of mobile services -Evaluating mobile services A must-read for librarians interested in mobile technologies and services, this guide provides librarians with practical information and examples to develop and offer mobile services in their libraries.