Beneath my recommendations on Amazon.com, there exists a tag cloud of categories representing the types of books I typically buy—in this case, typically means in grad school, as 90 percent of my Amazon purchases are related to design.

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Instead of design, however, according to this, I am mostly interested in commercial, culture, engineering, management, professional & technical, and typography books. Maybe this is Amazon’s way of offering to help me define design and its boundaries.