Ключевые слова: background, black, blackboard, board, brain, brainstorm, business, chalk, chalkboard, commerce, company, concept, currency, deal, dollar, doodle, drawing, drawn, education, euro, finance, green, hand, head, icon, idea, leader, learn, learning, management, marketing, mind, money, paint, partner, project, school, scratch, sketch, storm, strategy, study, success, symbol, target, team, texture, think, white,