The book reveals extensive correspondence between the pair.

He also baptized (about once a month), visited the sick, carried on extensive correspondence, and sustained heavy organizational responsibilities.

The project took two years to complete and required extensive correspondence with poets, editors, and literary agents.

His extensive correspondence, which he greatly enjoyed, shows him as a witty interlocutor.

He entered into relations with the most distinguished scholars of his day, and maintained with them an extensive correspondence.