Ключевые слова: background, book, bright, bulb, business, concepts, cover, creative, data, desk, document, education, electricity, energy, expertise, genius, glow, idea, imagination, information, innovation, inspiration, intelligent, knowledge, lamp, learn, learning, library, light, lightbulb, literature, mess, object, old, open, page, paper, reading, research, solution, stack, stained, study, table, thinking, training, untidiness, wisdom, wooden, writing,