"Concentrating on the complexities of large scale primary and secondary school textbook production, this paper aims to provide guidelines and information for creating viable publishing industries in developing countries. Statistical analysis, personal experience, case studies, and responses to a questionnaire on the publishing roles of the public and private sectors in developing countries form the basis from which the author constructs his blueprint for publishing of textbooks in the countries of the South. Neumann concludes that textbooks, teacher editions, and related materials are cost effective, efficient tools and vital factors in upgrading academic achievement, especially where teachers are less qualified." (Hans M. Zell, Publishing, Books & Reading in Sub-Saharan Africa, 3d ed. 2008, nr. 233)