Notebooks
Phi Ruler
SKU: TAT-PHI-PK-HC-BLK-GLD
A special edition notebook designed around the golden ratio — φ, 1.618. In collaboration with Hong Kong designer Yat Ming, pages carry custom grid lines calibrated to φ itself, designed to work alongside the Phi Ruler as a complete sketching kit.
- Pocket Size (A6+) - 88 x 145 mm | 140 g
- 80 gsm FSC®-certified acid-free paper
- Golden Ratio Grid
- 188 Numbered Pages with Index
- Hardcover
- TATOU® 2-layer Inner Pocket
- Elastic Closure Band
- Dual Bookmarks
- 180° Lay-flat Sewn Perfect Binding