Ключевые слова: abstract, art, background, bend, boundless, business, cartoon, college, continual, continuity, contour, creative, cycle, design, drawing, education, endless, erase, flexible, forever, graphic, icon, idea, illustration, infinite, infinity, instrument, isolated, learn, line, logo, loop, math, mobius, office, paper, pencil, school, shape, sign, silhouette, sketch, stationery, study, symbol, tool, unlimited, work, write,