Keywords
1940-1980 retro-styled imagery, adult, adults, arithmetic, attractive, beautiful people, blue background, cheerful, cheerfulness, cheery, classic, clever, color, color image, colour, colour image, contemplating, contemplation, contemplative, delighted, digit, digits, discovering, discovery, drawing, drawings, enjoying, enjoyment, equation, equations, formula, formulas, good looking, handsome, happiness, happy, idea, ideas, illustration, illustration and painting, illustrations, intelligence, intelligent, joy, joyful, knowledge, man, math, mathematician, mathematicians, mathematics, maths, men, number, numbers, old fashioned, old-fashioned, one person, painting, paintings, past, pensive, people, person, retro, retro revival, smart, smile, smiling, sum, sums, symbol, symbols, think, thinking, thoughtful, vertical, vintage, wisdom, wise, yellow, stock illustration, royalty free illustrations, stock clip art icon, stock clipart icons, logo, line art, EPS picture, pictures, graphic, graphics, drawing, drawings, vector image, artwork, EPS vector arts, fine art prints, print, poster, posters, mural, wall murals, cof0396