Ключевые слова: background, black, blackboard, board, business, chalk, chalkboard, commerce, company, concept, corporate, creative, deal, doodle, drawing, drawn, education, finance, green, hand, hatch, icons, idea, knowladge, leader, learn, learning, lesson, management, marketing, money, paint, partner, project, school, scratch, sketch, strategy, strokes, study, success, target, teach, team, text, texture, white, word,