Ключевые слова: achievement, analysis, analyze, arrow, background, big data, black, blackboard, block, blurry, board, business, chalk, chalkboard, chart, classroom, concept, data, diagram, doodle, draw, drawing, economic, education, finance, financial, graph, graphic, growth, increase, information, investment, lecture, marketing, numbers, perspective, pie, plan, profit, progress, report, sales, school, sketch, startup, statistic, success, target, white,