"An examination of the methodology used in the evaluation of textbook submissions by publishers for the Kenya Textbook Project, and the various components of evaluation criteria as they relate to content and conformity to the curriculum, writing and editorial quality, design and presentation, illustrations, suitability of the language for the intended reader, whether and how they encourage active learning, whether they promote positive social and cultural values and/or diversity, their gender responsiveness in both text and illustrations, and other significant issues. The author concludes that "the Kenyan project was judged to be a success not only because it gave teachers a choice of quality textbooks and effectively liberalised the book trade, which had previously been dominated by a state centralist publishing system. It was also judged successful because the evaluation and selection of the textbooks was based on a fair and objective system which gave no publisher or textbook a significant advantage over any other. The Kenyan project was in that respect, and in others also, a model for other publishing industries to follow." (Hans M. Zell, Publishing, Books & Reading in Sub-Saharan Africa, 3d ed. 2008, nr. 608)