Ключевые слова: abstract, art, background, black, blackboard, brainstorming, bright, bulb, business, chalk, chalkboard, classroom, concept, conceptual, creative, design, drawing, drawn, education, electricity, element, energy, genius, glowing, growth, icon, idea, innovate, innovation, inspiration, invention, knowledge, lamp, light, line, new, power, school, sign, sketch, solution, space, success, successful, symbol, technology, texture, thinking, white, write,