Just to keep track, here’s (most of) the design books I read in 2015.

• Thoughts on Design by Paul Rand
• Creativity, Inc. by Ed Catmull
• 100 Diagrams that Changed the World by Scott Christianson
• How to Make Sense of Any Mess by Abby Covert

I have trouble talking cogently about design books while I’m designing, but I particularly recommend Abby Covert’s book. The best information architecture books for new information architects for sure. Very likely one of the best for experienced (jaded) IAs as well.