In regards to psychology, read Daniel Kahneman's Thinking Fast and Slow. Kahneman describes fast thinking as the instantaneous, subconscious judgements we make, while slow thinking is the conscious, articulated thoughts we have. Kahneman shows how there is a huge disconnect between these two systems, and how this influences our behavior.
Another excellent book is Influence: The Psychology of Persuasion. It looks at how people are convinced into doing things (e.g. the effectiveness of various methods of advertising), and how you can guard yourself against these psychological mechanisms. The title sounds cheesy, but it is an excellent book full of concrete, interesting examples.
I'd highly recommend both books. While they may sound sort of salesy, both books deeply examine the process of making a decision.
Another excellent book is Influence: The Psychology of Persuasion. It looks at how people are convinced into doing things (e.g. the effectiveness of various methods of advertising), and how you can guard yourself against these psychological mechanisms. The title sounds cheesy, but it is an excellent book full of concrete, interesting examples.
I'd highly recommend both books. While they may sound sort of salesy, both books deeply examine the process of making a decision.