QR codes: enter the matrix!
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QR codes: enter the matrix!

Quick Response (QR) barcodes are more interesting than you might think, so it’s worth considering them. Just make sure they work as expected before going live… You’ve probably seen a QR code, even if you don’t know what they are or do. QR codes are basically a two-dimensional form of barcode, with data encoded in…

Preflighting: boring but important
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Preflighting: boring but important

Know more about preflighting than your software or you’ll get caught out. Grammar purists, look away now; this is all about a word that’s made its way from composite adverb to standalone verb. Preflighting is the act of going through a series of important checks before committing yourself. It originated in the flight industry (hence…

Airline safety card designs
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Airline safety card designs

A form of standardised international illustrated instruction? On a recent trip to Turkey I realised something: there’s one thing that you’ll find on every commercial airline flight you’ll ever take. No, not dodgy food (some flights don’t serve any, which can be a hidden blessing), I mean those airline safety instruction cards that are tucked…

With resolution, size does matter
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With resolution, size does matter

When I teach I constantly have to remind myself that things that seem simple because I learned them years ago weren’t always easy to grasp the first time around. Image resolution is a bit case in point; understanding the relationship between a bitmap image’s resolution, pixel dimensions and printed size is simple once you know…