Shape and abstraction: This image uses negative space perfectly - depending how you interperet it, the negative space can either be the sky because it is less dominant, or the buildings, because they are darker and catch your eye less.
We spend much of our time struggling against reality, mentally fighting against traffic, unpleasant colleagues, or tantruming children. The end result is that we use up our limited time and energy wishing things were different or better or less annoying.
If you are on a diet such as the 5:2 Diet it can be difficult to stay within the recommended daily calorie limits. With this helpful infographic you will learn what foods contain fewer than 100 calories.