The Gutenberg rule
The Gutenberg diagram is a concept that maps out something called reading gravity. Reading gravity describes a habit of reading in the western world: left to right, top to bottom.
“It suggests that the bottom left area of the page will get least attention as our eyes scan the page from top left to bottom right and that our glance would end up in the lower right portion of the page. How can we utilize this concept? Buttons and calls to action could be placed in bottom right instead of bottom left, as this is the place where the visitor’s glance is likely to alight.”

