Keywords
adult, adult education, african, ages, ballpoint pen, book, caucasian, college, concentration, document, education, educational occupation, ethnicity, evening class, expression, five people, holding, image source, in a row, inside, intelligence, knowledge, learning, lecture, lecture theatre, lesson, line, looking, looking down, making notes, male, man, mature adult, mature man, mature student, mid adult, mid adult man, multiracial, notebook, occupation, pen, perception, positive, profile, seat, serious, side view, sitting, someone, stationery, student, theatre seat, 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, is199-033, is199 033, is199033