Keywords
30-35 years, 30-39 years, 30s, adult, adults only, african american, african ethnicity, arms out, blackboard, casual, casual clothing, cheerful, class, classroom, college, color image, day, differential focus, discipline, education, finance, focus on background, gesture, gestures, gesturing, happiness, happy, horizontal, indoor, indoors, inside, institute, knowledge, lecture, lecturer, lecturing, lesson, lessons, lifestyle, male, man, mba, mid adult, one man only, one mid adult man only, one person, photography, professor, school, selective focus, side view, smile, smiling, standing, stare, stares, staring, student, teach, teacher, teaches, teaching, thirties, thirty, university, waist-up, waist-ups, white, 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, 1785r-3386, 1785r 3386, 1785r3386