This document provides information about QR codes, including what they are, why they are used, and how to read, create, and use them. QR codes can encode various types of data in a machine-readable format. They are commonly used for interactive content and linking the physical world with the digital world. The document discusses how QR codes offer benefits like high data capacity even in small spaces and being readable from any direction. It also provides examples of using QR codes for applications like product information, interactive field trips, and linking physical objects to digital content. Frequently asked questions about QR codes are addressed as well.
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