The document discusses using QR codes and their growing importance due to mobile trends. It defines what QR codes are and how they can store more information than barcodes. It then provides examples of how QR codes can be used in publications, email, outdoor advertising, signage, access control, videos/commercials, fundraising, packaging, apparel, and resumes/business cards. The document also discusses considerations for creating QR codes like color, size, and placement. It ends by listing mobile optimization and QR code resources.