There was a point several years ago where you couldn't move for barcodes as the cool graphic on t-shirts and stationery. I like them as a fun symbol for the retail or sales and marketing industry because they're so iconic, and such a great linear design.
Jonathan Howells is a senior designer and illustrator with over 20 years experience. He is the Creative Director of multi-disciplinary design office Dinnick & Howells, whose past clients include Levi Strauss, Glaxo Smith Kline and Lindt Chocolate. A self-confessed design geek, Jonathan runs a typography blog and is obsessed with endless possibilities of letterforms.