The electronic Bible is here to stay—packaged in software on personal computers, available as apps on tablets and cell phones. Increasingly, students look at glowing screens to consult the Bible in class, and congregants do the same in Bible study and worship. Jeffrey S. Siker asks, what difference does it make to our experience of Scripture if we no longer hold a book in our hands, if we again "scroll" through Scripture? How does the "flow" of electronic Scripture change our perception of the Bible's authority and significance? Siker discusses the difference made when early Christians adopted the codex rather than the scroll and Gutenberg began the mass production of printed Bibles. He also reviews the latest research on how the reading brain processes digital texts and how churches use digital Bibles, including American Bible Society research and his own surveys of church leaders. Siker asks, does the proliferation of electronic translations reduce the perceived seriousness of Scripture? Does it promote an individualistic response to the Bible? How does the change from a physical Bible affect liturgical practice? His synthesis of the advantages and risks of the digitized Bible merit serious reflection in classrooms and churches alike.