Keywords
adult, adult education, ages, book, boredom, caucasian, classroom, college, daydreaming, desk, document, education, educational occupation, emotion, ethnicity, expression, female, hand on chin, image source, inside, lecturer, looking, looking away, mature adult, mature student, mature woman, occupation, one person, only mature women, only one mature adult woman, perception, portrait, school, sitting, someone, stack, staring, student, teacher, textbook, whiteboard, woman, 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, is199-064, is199 064, is199064