This is one of the best books I’ve ever read.
Even if I’m not a designer by trade, I’ve been always curious about the processes behind it. And this book helped me understand a lot about how things are designed and how the design is dependent on the interaction with people using an object.
I liked the first and the last chapters the most: the first because it showed common examples of good and bad design, the latter because it explained how to apply all the concepts from the book in a real context.
Anyway, if you’re involved in product making at any level, you should definitely read this book, even if you skip some paragraphs in the middle chapters.