Home › Authors › Hans Walser 👤 Hans Walser 6 books Books by Hans Walser Golden Ratio Golden Ratio 2024 Spirals, Helical Lines, and Sp Spirals, Helical Lines, and Spiral-Like Figures 2024 Spiralen, Schraubenlinien und Spiralen, Schraubenlinien und Spiralartige Figuren 2022 99 points of intersection 2006 Symmetry (Spectrum) 2001 The Golden Section (Spectrum) 2001