Keywords
18-19 years, 20's, 20-24 years, 20-25, 20-30, 20s, 25-30, 40's, 40-45, 40-50, 40s, 45-50, 50-54 years, 50-55, 50-60, 55-60, adult, african-american ethnicity, asian, asian ethnicity, biology, bliss, book, caucasian, cheerful, chemistry, chinese, chinese ethnicity, class, classmate, classroom, college, color, color image, colour, confidence, confident, copy space, delight, delighted, education, educator, enjoyment, examining, far eastern, fellow, female, fifties, fifty, forties, forty, gaiety, gal, gentleman, glad, gleeful, gratifying, group, guy, happy, hispanic, holding, horizontal, human, human being, indoor, indoors, information, inside, instructing, instruction, instructor, intelligence, jolly, joy, knowledge, lab, laboratory, lady, latin, latin american, latin american and hispanic ethnicity, latina, learning, lighthearted, looking at camera, male, man, mature adult, mature women, medium group of people, merry, mid life, middle age, middle aged, middle-age, middle-aged, mixed race person, multi-ethnic group, multicultural, multiculturalism, negative space, notebook, oriental, people, person, photography, pleasing, pleasure, portrait, portraiture, posing, professor, pupil, rejoicing, research, satisfaction, school, schoolmate, schoolroom, science, science room, smile, smiling, standing, student, studying, teacher, teaching, three quarter length, three-quarter length, tuition, tutor, tutoring, twenties, twenty, university, western european, white space, wisdom, woman, women, young adult, young men, young women, 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, blm016448