Dr. Sylvia Löhken is an expert in what is probably the most important difference in personality typology: She helps introverts and extroverts translate their strengths and hurdles into successful communication and top performance. With all the differences.

Sylvia is known for her Quiet Trilogy: three books about introverted personalities and their communication. The second of these books, The Power of Personality, compares introverts, extroverts and ambiverts in their communication for the first time. And then there are a few other books... Sylvia's books are available in 30 languages and have encouraged people all over the world to live their personality.