Keywords
adult, adult education, african, ages, business, caucasian, chair, classroom, college, computer, computing, concentration, desk, education, educational occupation, ethnicity, evening class, expression, four people, image source, in a row, inside, intelligence, internet, knowledge, learning, lesson, line, male, man, mature adult, mature man, mature student, mid adult, mid adult man, multiracial, occupation, office interior, positive, profile, school, serious, side view, sitting, someone, student, studying, technology, using, working, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, is199-007, is199 007, is199007