A S Hornby (1898 - 1978) had a profound and enduring influence on English Language Teaching, not only through his publications and ideas on teaching methods but also through the Educational Hornby Trust, set up in 1961.

His publications with Oxford University Press include the Oxford Advanced Learner's Dictionary and the Oxford Student's Dictionary. The Oxford Advanced Learner's Dictionary has become one of the best-selling books of all time.

Hornby's eminence in the field of English Language Teaching was recognized by the award of several honours. He was appointed CBE and made Fellow of University College, London, and a Master of Arts of the University of Oxford.