Costandina completed all of her studies in USA obtaining a Bachelor’ s Degree in Communication and Master’s Degree in Business Communication at the Pittsburg State University. She received a full Graduate Scholarship at the age of 23, as a Teaching Assistant in Communication and Public Speaking. She also worked for an Advertising Agency as Account/Client Service Manager in San Francisco, California. She returned to Greece in 2001, and ever since she has developed her business career in the area of Corporate Training in different companies, and in teaching MBA courses in the area of communication, marketing, sales, advertising and public relations. Her business experience comes from mostly managerial positions in training and development in companies like Starbucks, Dynamic Life (Health Clubs Franchising), New York College Educational Group and TEAM Consulting Services. She has also developed training material for traditional forms of learning like workshops and seminars, as well as e-learning platforms. Constantina became a member of Being ESSENTIAL & VISIBLE Team in 2015 in the areas of Corporate Training, Seminar Facilitation and Development. She is also a Ph.D. Candidate in Organizational Psychology with specialization in Leadership, while she has developed a long experience in the areas of Communication, Corporate Training and Development.