“This creates a particular type of reading situation, the main characteristic of which is that readers must constantly make choices by clicking on one button or another to bring up various unit of information. Every button, every hyperlink is therefore an invitation to move forward, a promise of content." (Vandendorpe, Aronoff, and Scott 133) Liu states that when engaged in on-screen reading, more time is spent "browsing and scanning, keyword spotting, one-time reading, non-linear reading, and reading more selective, while less time is dedicated to in-depth reading and concentrated reading.”