Ключевые слова: abstract, brain, business, coffee, education, flat, head, human, icon, idea, imagination, innovation, inspiration, intelligence, knowledge, line, linear, love, mental, mind, modern, money, music, pattern, people, person, pictogram, process, profile, psychology, puzzle, question, seamless, sign, silhouette, sleeping, solution, stroke, study, survey, symbol, thin, thinking, thinking process, thought, web, wisdom,