I love unlikely partnerships.
Alex Steffen: Worldchanging, Revised and Updated Edition: A User's Guide for the 21st Century
A kind of rambling journey through projects, models, critiques,reviews, opinions,ideas and ideals, on topics that range from women's health and education to the environment and, well, everything really. As one of the main texts for my MA I tried reading it from cover to cover, but that wasn't the way to do it. It's a 'chunk' book - best read in small pieces so you can properly absorb and reflect on what you've just read.
Donald A. Norman: Emotional Design: Why We Love (or Hate) Everyday Things
It does feel a bit dated, but only because the world is so fast now and this is not a new book. But it all makes sense and reinforces the reasons why we 'want' objects.
Jon Wozencroft: The Graphic Language of Neville Brody
As I don't read a lot about Graphic designers I found this fascinating. I grew up reading The Face and I didn't know much about Magazine design back - I just knew I liked it because I felt it was different - and it was! There is a chapter where Brody is talking about students that he teaches and how he wishes that when they had an idea they would just do it and move onto the next one, instead of picking it to pieces. I have taken this on as a piece of good advice.
Jonathan Chapman: Emotionally Durable Design: Objects, Experiences and Empathy
Shigeki Nakamura: Pattern Sourcebook: Nature: 250 Patterns for Projects and Designs (v. 1)
Pretty pictures/pattern research
Stuart Walker: Sustainable by Design: Explorations in Theory and Practice