Keywords
50s, background people, book, campus, class, classroom, college, color, colour, concentrating, education, evening class, fifties, glasses, grey education, higher learning, hispanic, image, indoors, learning, lesson, library, man, mature student, middle aged, one person, pen, reading, research, senior, sitting, student, studying, textbook, university, vertical, 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, u13737867