July 2015 Magazine – Design Thursday, Jul 2 2015 

QR (Quick Response) codes are Smartphone or tablet (with reader app) readable and may be used to to enrich and/or ease customer/reader interaction and experience. Some QR functionality may be inaccessible if not on an active internet connection. This type of code was envisioned as “open source”, so there are wide varieties of free and nearly free services available online:   Start your search with the term “QR code generator”. Many sites that contain generators provide further free information from usage ideas to history and examples.

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This section is drawn from
http://www.gregathcompany.com/publish/design/qr.html

June 2006, V5#6: Design Friday, Jan 30 2009 

While text that is justified at both right and left margins has a tidier effect, text that is justified on the left with a ragged right is actually easier to read.  This is due to the fact that all spacing is uniform and no words are broken to wrap onto the next line.  Both of these devices, though allowing uniform right and left edges, slow the reader’s eye down as the brain processes these differences.