Pt. I. Proportions in ancient Egyptian architecture. Introd. to Pt. I. Harmony and proportions in architecture -- 1. In search of "the rule" for ancient Egyptian architecture -- 2. Mathematics and architecture in ancient Egypt -- Pt. II. Ancient Egyptian sources : construction and representation of space. Introd. to Pt. II. tradition and variations in ancient Egyptian art and architecture -- 3. Documents on the planning and building process -- 4. Foundation rituals -- Pt. III. The geometry of pyramids. Introd. to Pt. III. combining the knowledge -- 5. Symbolic shape and constructional problems -- 6. The proportions of pyramids -- 7. Pyramids and triangles -- An overview -- Appendix. List of Old and Middle Kingdom true pyramids