• Fitt's Law
• We Cargo
• wecargo.be
• 
• Fitt's Law: the time to acquire a target is a function of the distance to and size of the target. Usually, it is about button and padding around a button's message. And this law is simple: then easier to click, then more chance that it will happen. On this page we see two examples: "get tickets" and meeting announcement.

• Hick's Law
• Random House
• rhcbooks.com
• 
• Hick's Law: the time it takes to make a decision increases with the number and complexity of choices. This website perfectly shows how this law works in web design. We see one book, one logo, and a menu. Not too many choices. A visitor can choose this book or look to the next one. A chance that the visitor will click on the interested to him book extremely big.

• PARC: Repetition
• Smashing Magazine
• smashingmagazine.com
• 
• Repetition: the reusing of the same or similar elements throughout a website. Repetition also gives to visitors a sense of site recognition and consistency. Repetition creates continuity and looks professional. On this website, we see repetition in border style for images, border-radius of buttons, red and grey color, the same style's rules for text blocks.