The document discusses how QR codes can be used in an academic library setting. It provides an overview of what QR codes are, how they work, and examples of how libraries are using them. Some ways libraries are using QR codes include linking them from catalog records, placing them by books for additional information, and for signage and exhibits. Both pros and cons of QR codes are discussed, such as that they provide mobile-friendly access but may exclude some users. Best practices for creating and implementing QR codes are also outlined.