Lynn Wermers is a professor and the chair of the Computer Science Department at North Shore Community College in Massachusetts. She also coordinates the computer applications courses for the Verizon Next Step program, and serves as a math consultant for the School of Professional and Continuing Studies at Northeastern University.Natalia Michalun was an international dermo-cosmetic expert and educator. She had lectured to medical and esthetics professionals in more than 35 countries, and has been recognized for her in-depth knowledge and ability to share complex skin care concepts clearly and precisely.A graduate in Chemistry from the University of Buenos Aires, Argentina, Natalia has sat on the board of the EU's COLIPA, and the California State Board of Cosmetology. In 1980 she founded the first school for advanced esthetics in Northern California, in addition to having one of the region's largest esthetics salons. Her articles appear in professional magazines throughout the world.