For better readability which would be better for long paragraphs: align-justified or aligned-left?
Reason for asking: Aligned justify gives a better visual appeal but many tutorial and learning sites do not align-justify. Why?
Align-left is better for readability, because it have consistent spaces between words. It was find out that readers read faster and comprehend more informations when text is evenly spaced. Justify text is pretty, it can fit more characters in the line, but it is specced randomly. Human brain have to work harder to follow it.
Left align text is most favourable and used in web and mobile user interfaces because the human eye tends in "F-Patterns" - (read from left to right). but if your visual interface/design is for publication/print then align-justified will also works
Read this article: https://99designs.com/blog/tips/6-principles-of-visual-hierarchy/