**
Extra
**

Here we will be adding additional material, that will supplement the contents of the book.

- One cube inscribed in a dodecahedron (3D PDF, Google SketchUp)
- Page 29, Figure 0.20: Five cubes inscribed in a dodecahedron (3D PDF, Google SketchUp)
- Page 182, Table 5.2, Eccentricities of perfect states and their excess in $H_4^n$

(all non-equivalent states in $H_4^{15}$ with excess 1) - Page 183, Table 5.3, Eccentricities in $H_4^n$ (numerical results of eccentricities, radius, diameter and $\overline{\varepsilon}$ in graphs $H_p^n$)
- Page 191, Figure 5.9: The graph $H_4^4$
- Multipeg Tower of Hanoi Graphs
- Number of non-equivalent states with given eccentricity in graphs $H_4^n$, $H_5^n$ and $H_6^n$
- A list of number sequences from OEIS appearing in the book