Keywords
3, 40's, 40-44 years, 40-45, 40-50, 40s, 45-50, 50-55, 50-60, 55-60, 60's, 60-65, 60-70, 60s, 65-69 years, 65-70, 70's, 70-75, 70-80, 70s, 75-79 years, 75-80, accessory, adult, adult education, caucasian, class, classmate, classroom, color, color image, colour, continuing education, education, elderly, eye-glasses, eyeglasses, fellow, female, fifties, fifty, focus on foreground, forties, forty, front view, gal, gentleman, glasses, gray, gray hair, grey, grey hair, guy, hair, head & shoulders, head and shoulders, hearing, horizontal, human, human being, indoor, indoors, information, inside, instructing, intelligence, knowledge, lady, learning, lecture, lecture hall, listener, listening, male, man, mature adult, mature women, mid life, middle age, middle aged, middle-age, middle-aged, notepad, observing, old, people, person, photography, pupil, retired, retirement, school, schoolmate, schoolroom, seat, seated, self-improvement, senior, senior adult, senior citizen, senior men, senior women, seventies, seventy, sitting, sixties, sixty, specs, spectacles, student, studying, taking notes, three, three people, tuition, viewing, watching, western european, white hair, wisdom, woman, women, writing, 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, bld129827