Serif typefaces, for text, are easier to read when printed...
Sans Serif typefaces, for text, are easier to read when on screen.
Justifying text: (Having the words at the begining and end of each line touching the collumn edge)
This should not be used on narrow collumns with few words on each line, as it can create gaps (rivers)
When arranging type and images on a page, there are slight adjustments that can make it work.
For example, if you have a single line relationship between the images and type. And if they are 'hanging', where the top line is equal yet the bottom line isn't.