Keywords
20's, 20-24 years, 20-25, 20-30, 20s, 25-30, 4, 40's, 40-45, 40-50, 40s, 45-50, 50-54 years, 50-55, 50-60, 55-60, 60's, 60-64 years, 60-65, 60-70, 60s, 65-70, 70's, 70-75, 70-80, 70s, 75-80, adult, adult education, adult student, beard, career, caucasian, class, classmate, classroom, close up, close-up, closeup, color, color image, colour, commitment, community college, concentrating, concentration, continuing education, dedication, determination, education, elderly, examining, facial hair, fellow, fifties, fifty, focusing, focussing, forties, fortitude, forty, four, four people, front view, gentleman, guy, hands clasped, head & shoulders, head and shoulders, hearing, horizontal, human, human being, indoor, indoors, information, inside, instructing, intelligence, knowledge, learning, lecture, listener, listening, male, man, mature adult, mid life, middle age, middle aged, middle-age, middle-aged, night school, old, people, persistence, person, photography, portrait, portraiture, pupil, resolution, retired, retirement, school, schoolmate, schoolroom, seated, self-improvement, senior, senior adult, senior citizen, serious, seriousness, seventies, seventy, sitting, sixties, sixty, solemn, somber, student, studying, together, togetherness, tuition, twenties, twenty, western european, whisker, wisdom, young adult, 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, blm008153