Ключевые слова: abstract, brain, brainstorm, business, cartoon, concept, contemplation, creative, design, education, geometric, graphic, head, health, human, icon, idea, illustration, imagination, information, inspiration, intelligence, intelligent, isolated, knowledge, learning, line, line icon, logo, logotype, medical, mental, mind, modern, neurology, organ, people, person, pictogram, profile, science, sign, silhouette, simple, smart, solution, stylized, symbol, think,