Ключевые слова: arrow, ask, brain, brainstorm, choice, colorful, concept, concern, confusion, decision, design, dilemma, doubt, enigma, face, head, help, helplessness, icon, idea, illustration, imagination, imagine, information, intellect, isolated, knowledge, learn, male, man, mind, option, poster, preference, problem, profile, psychological, psychologist, psychology, search, silhouette, solution, strategy, symbol, think, through, uncertainty, unsolvable, vision, visualize,