Professor & Blackboard

Keywords

adult, assistance, background, bald, blackboard, blank, cartoon, chalkboard, character, classroom, clip art, college, copy space, copyspace, design element, education, empty, expertise, glasses, gray hair, illustration, information, instructor, isolated, isolated on white, knowledge, lab coat, lecturer, man, moustache, necktie, pointer, pointer stick, pointing, presentation, presenting, professor, school, science, scientist, seminar, space, stick, teacher, teaching, tutor, university, vector, white, wisdom