Prior to the publication of this book, there has been a complete absence of literature on the contributions of deaf men and women in science. Written by a deaf scientist, this book is one of the few syntheses of the issues facing deaf people in a particular field of professional endeavor. Because of the highly invisible nature of deafness, much of the information presented by Lang will be new to readers. His research represents six years of archival search among the historical documents of the deaf communities of Europe, Canada, and the United States. The prominent role that deaf scientists have played in history becomes apparent through Lang's presentation of the accomplishments of these talented and determined men and women. The study of deaf scientists is part of the study of other marginalized groups, and finds parallels in African American and women's studies. The issues surrounding technological development, eugenics, and disabilities in general are several of the important themes of this work.