Ключевые слова: background, blackboard, blank, board, border, business, chart, class, clean, communication, concept, corner, corporate, creative, design, draw, drawing, education, empty, erasable, female, frame, hand, human, idea, information, inspiration, isolated, learn, marker, memo, message, note, notice, object, office, pen, person, planning, presentation, reminder, school, sketching, space, student, white, whiteboard, woman, work, write,