Experience = Expectation - Perception where: - if Expectation > Perception then your experience is +ve (e.g. surprise); - if Expectation < Perception then yo

Experience = Expectation - Perception where: - if Expectation > Perception then your experience is +ve (e.g. surprise); - if Expectation < Perception then you experience is -ve (e.g. disappointment). So the question I'd ask you is this: what were your expectations when you picked up a copy of DDIA?