pAcknowledgmentsbr /br /Preface/pp1. Introductionbr /br /2. Math and Science Achievementbr /br /3. Expectation of a Science/Engineering College Majorbr /br /4. Attainment of a Science/Engineering Baccalaureatebr /br /5. Career Paths after a Science/Engineering Baccalaureatebr /br /6. Career Paths after a Science/Engineering Master’s Degreebr /br /7. Demographic and Labor Force Profiles of Scientistsbr /br /8. Geographic Mobility of Scientists/Engineersbr /br /9. Research Productivitybr /br /10. Immigrant Scientists/Engineers/ppbAppendixes/bbr /br /Appendix A. Descriptions of the Databr /br /Appendix B. Method for Decomposition Analysisbr /br /Appendix C. Detailed Occupation Codes in Science and Engineeringbr /br /Appendix D. Detailed Statistical Tables/ppNotesbr /br /Referencesbr /br /Index/pThis is a substantial piece of work on a significant topic. Recalling Karl Popper’s emphasis on falsification, I am impressed with the number of important propositions the authors were able to put to rest. The melding of technical skill and cogent argumentation is remarkable.Xie and Shauman skillfully analyze 17 data sets to pinpoint forces that lead fewer women than men into careers in science or engineering. Their scope is the whole life cycle – from high school to graduate school to combining jobs with families. This is the book to read on why most scientists and engineers are men.This is an impressive piece of work and is likely to become the standard reference for understanding gender differences with respect to involvement in science for many years to come. The authors are to be particularly congratulated on the scope of their project in terms of the breadth of the life cycle that it covers.I have not seen any other volume that covers the career process of women as thoroughly as this investigation of how women become scientists and engineers and what causes them to leave these fields at @2