Hick’s Law - every additional choice increases the time it takes to make a selection
Pareto principle - the 80/20 rule
The rule of thirds - a viewer is more likely to be drawn to the intersection points
Proximity - elements that are near each other will appear related
Feedback - provide immediate feedback on user actions
Fitt’s Law - The time required to move to a target is a function of the target size and distance to the target.
The golden ratio -  produces visually pleasing compositions.
Fibonacci sequence - patterns based on the sequence are intrinsically aesthetic
Mental models - it’s easier for users to understand and learn something new if they can model it off of something they already understand
Miller’s Law - the average human can hold 7 ±2 objects in working memory