Reading speed

Evidence has shown that reading from the screen can be between 20-30% slower than reading from paper.

Locating information
On the other hand, other research looked at the speed of using hypertext vs. paper to locate information. The results revealed a 15% speed advantage for paper over hypertext. The disparity between reading on-screen vs. on paper is greater than the disparity between locating information on-screen via hypertext vs. on paper. This could mean that the value of on-screen text increases when searching for information via hypertext.

Differences between reading from paper and on-screen: