The above image is of the Eames Studio in Venice California, circa 1965. It is the exemplar of the creative studio. Everything in that environment was suffused with design thinking but it wasn't thought of in those terms at that time. It was simply industrial design, coupled with a sense of arts and crafts. Craft is grandfathered into design, and is what we think of when we use the word, but design sometimes has nothing to do with aesthetics and rather is concerned with function. But design can't exist on function alone; Ideally, design is a perfect marriage of the two, and is the implied objective of all design projects.
I have explored this at some length in my essay Innovationism. Here is an excerpt from the essay on design thinking:
(This essay is part of a collection of essays, Exforma, available at Amazon)