The problem of this study was to trace through available sources the history of Norma and Mel Gablers' work concerning the curricular appropriateness of textbooks and interpret in terms of motivation, scope, and effectiveness the identified impact of their work. The purpose of this study was to present a comprehensive report documenting specifically that which the Gablers have done, said, and represent. A chronology of events of the Gablers' textbook involvement from 1961 through 1981 has been recorded. Material written and/or distributed by the Gablers through their organization, Educational Research Analysts, has been reviewed and summarized with extensive documentation to convey the philosophy and intentions of the Gablers since their work in this area began. Specific passages of textbook content petitioned against by Norma Gabler before the Texas State Textbook Adoption Committee have been presented as organized around the Gabler outline, "Textbook Reviewing by Categories." Media presentations featuring the Gablers have been reviewed for the purpose of informing others about what types of information have been presented to the American public about this issue and to offer a glimpse into the human nature characteristics of the Gablers as personalities. Professional educator reaction into this probe of textbook content is offered to relate the numerous concerns expressed about the monitoring of educational materials. Finally, an analysis of the Gablers' efforts and identified observations as to their effectiveness and influence have been recorded conveying the extent and success of the Gabler involvement as it pertains to textbook content.