Technical education comprises an extensive range of courses and classes that are attended by students who have left day school; it excludes courses provided by the universities and adult education agencies. This body of work includes continuation and hobby classes, school of pharmacy, classes for apprentices and technicians, senior business courses, and a variety of other short and long courses — generally, though not always, part-time day or evening — too numerous to mention individually. Together they form a part of the education service that has been growing very rapidly during the past decade and shows every sign of growing even more rapidly in the next.