Endogenetics designates any writing process focusing on a reflexive or self-referential activity of elaborating pre-textual data, be it exploratory, conceptual, structuring, or textualizing work, and regardless of the nature or state of such elaboration. I will therefore call endogenetics the process by which the writer conceives of, elaborates, and transfigures pre-textual material, without recourse to outside documents or information, through simple reformulation or internal transformation of previous pre-textual data.