Ключевые слова: abstract, back, background, blackboard, brain, bright, bulb, business, businessman, chalkboard, concept, concrete, copy, copyspace, creative, creativity, education, electric, electrical, electricity, energy, enlightenment, equipment, glowing, idea, illuminated, imagination, innovation, innovative, inspiration, ladder, lamp, leadership, light, lightbulb, man, marketing, object, power, seminar, space, standing, storm, success, supply, symbol, technology, vision, watts, workshop,