Fr Justin is helping to share online the historic manuscripts in an ancient Sinai monastery
For a monk who lives in the Sinai desert in Egypt, in the world's oldest working monastery, Father Justin replies to emails very speedily.
It should come as no surprise: the Greek Orthodox monk is in charge of hauling the library at St Catherine's into the 21st Century.
This ancient collection of liturgical texts, including some of the earliest Christian writing and second in size only to the Vatican, is going to be made available online for scholars all over the world.
The manuscripts, kept in a newly-renovated building which was opened to the public in December 2017, are now the subject of hi-tech academic detective work.
East meeting West
A team of scientists and photographers working alongside Fr Justin has been using multi-spectral imaging to reveal passages hidden beneath the manuscripts' visible text.
These include early medical guides, obscure ancient languages, and illuminating biblical revisions.
Among the researchers is Michelle P Brown, professor emerita of medieval manuscript studies at the University of London.
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