Keywords
30's, 30-35, 30-40, 30s, 35-39 years, 35-40, adult, african, african american, african ethnicity, african-american, african-american ethnicity, afro american, afro-american, arranging, auditorium, black, class, classroom, college, color, color image, colour, copy space, education, educator, explaining, fellow, gentleman, gesturing, guy, hispanic, horizontal, human, human being, indoor, indoors, information, inside, instructing, intelligence, knowledge, latin american, latin american and hispanic ethnicity, latino, learning, lecture hall, looking up, male, man, mid adult, mid adult men, mixed race, mixed race person, motioning, negative space, occupation, of african descent, one, one person, organizing, people, person, photography, planning, practice, practicing, practising, preparation, preparing, professor, rear view, rehearsing, school, schoolroom, serious, seriousness, signaling, solemn, somber, standing, teacher, thirties, thirty, three quarter length, three-quarter length, tuition, university, white space, whiteboard, wisdom, work, working, 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, blm027713