Ключевые слова: achievement, advanced, advertising, analysis, background, black, budget, business, career, clock, communication, competence, concept, continuing, continuous, course, development, education, experience, improve, information, knowledge, learn, management, motivation, note, notebook, paper, pencil, practice, professional, progress, qualification, sayings, school, schooling, seminar, skill, social, strategy, study, talent, technology, text, time, top view, training, trend, university, webinar,