There are tons of generator apps and tools out there that you can use to create a QR code for essentially anything, whether that's for an email address, Facebook business page, or simple text.

Figure D: Right-click or two-finger tap the touchpad, and select Create QR code for this page (left ... to create QR codes for email, Twitter, Facebook, SMS, Wi-Fi, Flickr and YouTube among ...

They can either store information (about 3KB’s worth), or redirect you somewhere (like a website or an app page). If you come across a QR code you want to read, you’ve got everything you need ...

These actions may include: Opening a website or web page Sharing the QR code or its contents with others Saving the encoded data for future reference For instance, if the QR code contains a URL ...