Ключевые слова: abstract, art, background, brain, cerebral, color, colorful, communication, concept, connection, creative, creativity, drawing, genius, graphic, head, health, human, idea, illustration, imagination, inspiration, intellect, intellectual, intelligence, knowledge, learning, life, medical, medicine, memory, mental, mentality, mind, nerve, neurology, organ, pen, pencil, pencil drawing, people, psychology, science, sign, smart, solution, symbol, system, technology, think,