Electronic literature or digital literature is a genre of literature encompassing works created exclusively on digital devices. A work of electronic literature can be defined as "a construction whose literary aesthetics emerge from computation", "work that could only exist in the space for which it was developed/written/code the digital space." This means that these writings cannot be easily printed, or cannot be printed at all, because elements crucial to the text are unable to be added to a printed version. Some novels are exclusive to electronics. Digital literature tends to require users to traverse the literature through the digital setting.