I think these perfume sample cards have some great examples of graphic (and material) design. Very succinct, yet impactful branding. Plus, they get the bonus of having the product sprayed on them - very good selling tool. These were used in the quest for Katy’s birthday gift.
These will be used to record my piano at home, I am learning how to us them in the meantime.
This image is the spectrum analysis of an LCD monitor, using a mini spectroscope. You can make your own here: University of Wisconsin-Milwaukee Mini Spectroscope Instructions.
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