Evaluate Like a Grandmaster

Chess can be broken down into calculation and evaluation. Calculation involves looking at moves, but at some point you have to stop and evaluate. Whose position is better and why?
Most chess books focus on calculation and select positions where the evaluation is obvious. But do you only get obvious positions in your games? We don't, so we decided to write a book that teaches you how to evaluate complex positions so you know what to aim for and what to avoid...