Throughout the 15 years during which Dunayevskaya wrote Philosophy and Revolution — 1958 through 1973 — she created what she called “chapter files” for her work on the book. In these files she placed a wide range of documents from her studies: 1) reading notes on books and articles studied; 2) important correspondence on the subjects discussed in P&R, or on drafts of the chapters; 3) notes to herself — documents she often called “random thoughts” — as she worked out political-philosophic problems; 4) notes and texts from presentations she had given on aspects of the book; and 5) texts of articles by others, taken out of journals, newspapers or books, and marked-up with her own marginalia. In this section Dunayevskaya’s chapter files are included as she left them, with two exceptions: 1) texts of articles by others which Dunayevskaya marked up are not included here; 2) documents clearly added to these files by Dunayevskaya. after P&R was published in November, 1973 are included only at the end of each chapter file.Although the organization of these files often was drastically altered during the writing of P&R, to reflect the organization of the chapters of the book-in-progress, they are presented here in the order Dunayevskaya left them, i.e., an order corresponding to the sequence of chapters in P&R as it was published.