This book examines common issues and concepts concerning women in non-traditional, male dominated occupations. It explores the question of whether these women are the agents of change or are instead changed themselves. It provides a statistical examination and theoretical analysis of occupational sex segregation in the UK, the rest of the European Union, and the USA. Then, it provides a more in-depth understanding of women's work lives through the experiences of the women themselves in four occupations; management, academia, engineering and the priesthood.