Ключевые слова: abstract, art, background, banner, book, business, certificate, chemistry, collection, college, computer, concept, design, diploma, document, education, elearning, element, flat, globe, graduation, graph, graphic, icon, illustration, infographic, information, internet, knowledge, learn, learning, library, online, pencil, people, pictogram, reading, school, science, set, sign, student, study, symbol, technology, template, university, web,