The following lists of improvements to Greg Frederickson’s books are in book order. The lists are not complete.
| Figure | Dissection | Description | Old #pieces | New #pieces |
|---|---|---|---|---|
| 5.19 | {6}–2×{6} | Hexagon to two Hexagons | 9 | 8 |
| 6.10 | {3}–7×{3} | Triangle to seven Triangles | 12 | 11 |
| 6.16 | {6}–5×{6} | Hexagon to five Hexagons | 16 | 13 |
| 10.13 | {4}–{12/3} | Square to Dodecagram | 9 | 8 |
| 11.45 | {4}–{12/2} | Square to Dodecagram | 8 | 8 |
| 13.6 | {6}–{6/2} | Hexagon to Hexagram | 6 | 6 |
| 15.7 | {4}–{C} | Square to Crescent | 8 | 7 |
| 18.7 | {7}–{7/3} | Heptagon to Heptagram | 14 | 13 |
| 20.14 | {TO}–{C} | Truncated Octahedron to Cube | 13 | 11 |
| 20.15 | {RD}–{C} | Rhombic Dodecahedron to Cube | 13 | 11 |
| 20.16 | {C}–2×{T}+{O} | Cube to two Tetrahedra and Octahedron | 16 | 15 |
| 20 p245 | {TO}–{RD} | Truncated Octahedron to Rhombic Dodecahedron | 28 | 24 |
| Figure | Dissection | Description | Old #pieces | New #pieces |
|---|---|---|---|---|
| 6.11 | {3}–7×{3} | Triangle to seven Triangles | 12 | 11 |
| 14.8 | {4}–{Gc} | Square to Curved Greek Cross | 8 | 7 |
| 20.14 | {TO}–{C} | Truncated Octahedron to Cube | 13 | 11 |
| Figure | Dissection | Description | Old #pieces | New #pieces |
|---|---|---|---|---|
| M3.3 | {6}–2×{6} | Hexagon to two Hexagons | 9 | 8 |
| M4.1 | {4}–{14} | Square to Tetradecagon | 10 | 9 |
| M4.1 | {4}–{16} | Square to Hexadecagon | 11 | 10 |
| M4.1 | {4}–{18} | Square to Octadecagon | 12 | 10 |
| M4.1 | {4}–{19} | Square to Enneadecagon | 16 | 13 |
| M4.1 | {4}–{20} | Square to Icosagon | 14 | 11 |
| M4.1 | {4}–{21} | Square to Icosihenagon | 15 | 14 |
| M4.1 | {4}–{24} | Square to Icositetragon | 14 | 12 |
| M5.4 | {4}–{16} | Square to Concave Hexadecagon | 11 | 10 |
| Figure | Dissection | Description | Old #pieces | New #pieces |
|---|---|---|---|---|
| Plate 16 | {3}–7×{3} | Triangle to seven Triangles | 12 | 11 |
| Plate 16 | {3}–13×{3} | Triangle to thirteen Triangles | 20 | 19 |
| I70a | {6}–6×{6} | Hexagon to six Hexagons | 18 | 16 |
| I84a, I84c | {6}–12×{3} | Hexagon to twelve Triangles | 24 | 21 |
| I110a | {10}–{4}+{4}+{4}+{4} | Decagon to four Squares, area-ratio 1:2:3:4 | 17 | 16 |
| I136a | {4}–{16} | Square to Hexadecagon | 11 | 10 |
| I138b | {4}–{20} | Square to Icosagon | 13 | 11 |
| I140b | {4}–{24} | Square to Icositetragon | 13 | 12 |
| I155 | {S}–{QC}–{4}–{AC}+{T} | Swastika to Quadrate Cross to Square to St. Andrews Cross and “Tetraskelion” | 11 | 9 |