Share your inspiring design books

As we slowly prepare for Interactivos'15, why not get into the mood by sharing our most inspiring resources and books about design.

On my part, I'm a big fan of Victor Papanek's "Design for the Real World", as most of what he speaks about is definitely inspiring for the "open source design movement" we have today. Here's an article about his second book "Nomadic furniture" which nice illustrations.