In our changing and improving world, new discoveries, practices, rules and habits are emerging everyday. Parallel to our changing and developing world regularities, expectations are increasing in the business world as well. Due to this increase, those who set their hearts on today’s executive assistant profession, in which the importance of their duties and positions are quickly understood, feel obliged to follow trends and developments more closely. Assistants, who can foresee the needs of necessary change, be able to think systematically and analytically, and have different perspectives, become companies’ irreplaceable members. Among the competencies in today’s executive assistants, who nowadays represent more than standard expectations and become as strength behind the leaders, are, sustainable self-confidence and strengthened communicative skills, being able to compound strategic thinking with integrative thinking, body language, image, appearance, visional awareness, behavioral manners, professional concepts and values in management, etiquettes in protocol and diplomacy, correct expression ability, being able to accept mistakes unsubtly, being open for innovations and technology, comprehending expectations of corporate and manager and so on.