David Parker, FSA is Edward Cadbury Professor of Theology in the University of Birmingham and Director of the Institute for Textual Scholarship and Electronic Editing. He is Executive Editor of the International Greek New Testament Project, which is making critical editions of the Gospel of John and Paul's letters and is also on the editorial committee of the Nestle-Aland (29th edition) and United Bible Societies (sixth edition) Greek New Testaments. He has published widely on New Testament manuscripts and textual scholarship, and is also a pioneer in developing digital tools and editions, such as the virtual Codex Sinaiticus, the Virtual Manuscript Room and online editions at www.iohannes.com.