Over 52 million tablet devices were sold during the fourth quarter of 2012 and sales are predicted to continue to increase in years to come. These lightweight mobile computing devices are quickly becoming an integral part of patrons' everyday lives. Libraries are responding by incorporating them into their programs and services. Using Tablets and App in Libraries outlines how libraries can support this new BYOD (bring your own device) culture including offering app events and instruction, installing mounted tablets within the library, offering tablet lending programs, initiating tablet training programs for staff, and ways to evaluate and use quality apps.