Ключевые слова: abstract, attached, blue, book, bookmark, bright, campus, closeup, color image, colored background, colors, composition, copy space, creativity, data, document, education, homework, horizontal, ideas, india, indoors, japan, label, learning, library, literature, memories, multi colored, no people, organization, paper, paperwork, pattern, pencil, reminder, research, separation, stack, studying, text, uk, university, variation, vertical, wisdom, working,