All of the books Priestley published while at Warrington emphasised the study of history; Priestley considered it essential for worldly success as well as religious growth.
Seluruh buku yang diterbitkan Priestley ketika berada di Warrington menekankan studi kesejarahan; Priestley menganggap buku-bukunya tersebut penting untuk kesuksesan duniawi serta pertumbuhan agama.