QR codes leverage the power of smartphones to connect digital data to real-world surfaces. The first presentation demonstrates the simple steps needed to make QR codes and explains how university libraries have used QR codes to collocate disparate collections and shed light on unique items while generating usage statistics. The second presentation shares case studies of how libraries can engage patrons and bridge the gap between print and electronic materials via QR codes. Bloechle provides tips and best practices to help libraries market their valuable electronic resources using QR codes.