Pollard's knowledge of his subject was displayed in his contributions to The Cambridge Bibliography of English Literature and in his lectures and articles.
With John Carter, he wrote An Enquiry into the Nature of Certain Nineteenth Century Pamphlets (1934), exposing the prominent book collector Thomas J.
[3] In 1937, Harry Carter, Ellic Howe, Alfred F. Johnson, Stanley Morison and Graham Pollard started to produce a list of all known pre-1800 type specimens.
In 1939, the bookshop partnership ended and Pollard became a special lecturer at University College, London before joining the Board of Trade in 1942; whilst this was supposedly a temporary appointment, he remained until retirement in 1959.
He maintained his bibliographical interests, publishing an edition of The Earliest Directory of the Book Trade by John Pendred (1785), and lecturing in Cambridge shortly before his retirement.