Thinking, Fast and Slow
If you haven't yet read Nobel-Prize Winner Daniel Kahneman's Thinking, Fast and Slow, get a copy and read it. Read it three times - it's dense enough, though written to be understandable for the average non-economist. For any academic librarian, educator, or anyone else interested in decision-making, critical thinking, and flaws in logic that people employ, it's an excellent book. I haven't even finished it yet (I'm about halfway through) so you won't get the full review until later, but go buy this book - it will change your life. It will cause you to reassess your own reactions to episodes in daily life and professional practice.