He recently completed a three-year project sponsored by the Australian Research Council that explored the earliest Christian books from a number of angles, focusing on issues of construction and dating as well as provenance and collection history. The results of the project will appear in his forthcoming book on the archaeology of the earliest Christian manuscripts. He has a particular interest in the important collection of early Christian books at the Fondation Martin Bodmer and is a collaborator with the Bodmer Lab (University of Geneva) in the production of a comprehensive catalog and open access digital library of this material.