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One of the articles is about the 10 principles for good design by Dieter Rams and illustrates every one of them. Of those products only at principle number seven and nine are made by Vitsoe mentioned.
I like the simple call to action that they put on the article. Well integrated into the article.
By the way: both products were designed in the 60s and are still selling like hotcakes. I guess a good product and brand goes a long way!