Ключевые слова: background, blank, book, closeup, color, cover, data, dictionary, education, expertise, glass, handbook, handle, hardcover, information, instrument, isolated, knowledge, learning, lens, library, literature, loupe, macro, magnifier, magnifying, nobody, object, old, optical, paper, reading, red, school, search, single, study, text, textbook, tool, university, wisdom, wood, wooden,