Based on the methodology of the historical epistemology of knowledge organization with a Dilthyean approach, the aim of the study is to discuss some prominent aspects of Bibliology, considered as macroknowledge, based on the discourses of Gabriel Peignot, Paul Otlet and Robert Estivals. The main objective was to consider "epistemology" as the pioneer in the endeavor to support scientific discourse that is now called epistemology of informational studies, informational epistemology, or epistemology of Science Information. More specifically, the objective is to discuss the relationship of Bibliology with Peignot and Otlet and its expression during the "long nineteenth century", based on scientific, rational and systematic culture and the acclaim of epistemology as it reflects academic-empirical knowledge. From a vertical perspective, we discuss the scientific concept of "book" and its importance for the development of Bibliology for Gabriel Peignot and Paul Otlet.
Bibliology; Informational epistemology; Philosophy of information science; History of information science; Book