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, adult, adult education, appendage, arm, arms raised, asking, back view, caucasian, class, classmate, classroom, color, color image, colour, continuing education, curiosity, curious, education, elderly, enquiring, facing away, fellow, female, fifties, fifty, forties, forty, front view, gal, gentleman, gray, gray hair, grey, grey hair, guy, hair, hand, head & shoulders, head and shoulders, hearing, horizontal, human, human being, implement, indoor, indoors, information, inquiring, inside, instructing, intelligence, interest, interrogating, knowledge, lady, learning, lecture, lecture hall, limb, listener, listening, looking away, male, man, mature adult, mature women, mid life, middle age, middle aged, middle-age, middle-aged, observing, old, participation, pen, people, person, photography, pupil, question, questioning, raised, raising, retired, retirement, school, schoolmate, schoolroom, seat, seated, self-improvement, senior, senior adult, senior citizen, senior men, senior women, seventies, seventy, sitting, sixties, sixty, student, studying, three, three people, tuition, viewing, watching, western european, white hair, wisdom, woman, women, writing, writing instrument, 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, bld129830