Ключевые слова: abstract, academic, arrangement, black color, blackboard, blank, board, brainstorming, business, chalkboard, chart, classroom, clear, college, communication, concept, connection, cut out, diagram, education, empty, flow chart, geometric shape, graph, graphic, idea, inspiration, knowledge, multi colored, order, organization, plain, plan, planning, presentation, rectangle, school, shape, simplicity, studio shot, success, university,