This is Volume I of eighteen in a series on the Sociology of Work and Organisation. First published in 1960, this is a study following the appointment Carr Committee, in 1956, of the and in the interest aroused by the Committee's Report Training for Skill-Recruitment and Training of young Workers in Industry (1958). The Carr Report and the discussion centred on it not only show the importance of the subject but also indicate the need for independent and detailed research in this field. Because certain features of apprenticeship are changing continuously and rapidly, it is inevitable that in a study of this kind some of the facts should be out of date by the time of publication.