Keywords
16-17 years, 20's, 20-24 years, 20-25, 20-30, 20s, 25-29 years, 25-30, 4, adult, book, bored, boredom, boring, caucasian, child, class, classmate, classroom, college, color, color image, colour, concentrating, concentration, education, examining, exhaustion, fatigue, fellow, female, focusing, focussing, four, four people, gal, gentleman, girl, guy, hand in hair, head & shoulders, head and shoulders, head in hands, headache, hispanic, human, human being, indoor, indoors, inside, instructing, juvenile, kid, knowledge, lady, latin american, latin american and hispanic ethnicity, latina, latino, learning, male, man, minor, mixed race, mixed race person, multi-ethnic group, multicultural, multiculturalism, people, person, photography, pupil, school, schoolmate, schoolroom, seated, selective focus, sitting, student, studying, teen, teenage, teenage girl, teenage girls, teenager, textbook, tired, tome, tuition, twenties, twenty, university, vertical, wearying, western european, woman, women, young, young adult, young men, young women, youth, youthful, 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, bld113552