Ключевые слова: advice, background, best, better, blackboard, board, business, chalk, chalkboard, choice, choose, choosing, common, communicate, communication, compare, concept, decision, effective, efficiency, efficient, habit, hard, harder, illustrated, illustration, improve, improvement, job, management, method, more, plan, practice, process, productive, productivity, smart, smarter, success, system, targeting, task, text, two, versus, vs, way, word, work,