I recommend the book "Your Brain at Work" by David Rock. He does a great job at explaining what goes on in your head on a given day, for a given decision.

https://www.amazon.com/Your-Brain-Work-Strategies-Distractio...

Your Brain at Work http://www.amazon.co.uk/Your-Brain-Work-Strategies-Distracti...

It uses the short stories from the work days of a senior manager and software consultancy owner to explain how and why the brain reacts the way it does in challenging situations and gives advice on how best to mitigate its limitations.

There is a good book - "Your Brain at Work" by David Rock - explaining this (and many other things)

http://www.amazon.com/Your-Brain-Work-Strategies-Distraction...