Irma Boom's Sheila Hicks: Weaving as Metaphor. In addition to displaying the inspirational and boundary-breaking work of one of my favorite textile artists, the book itself is a design object. The book's highly considered structure, texture, and materiality form a powerful example of a graphic designer's ability to enhance the content rather than distract from it.
Akari Lamp by Isamu Noguchi. It's hard to pick just one! A classic is the Akari Lamp series by Isamu Noguchi. Their multiple shapes and sizes make them incredibly flexible in animating interiors, lending them the perfect warm, calm glow.