1 Table of Contents: “... Explorations -- Rooks in Space -- Chromatic Number of the Plane -- Polygons in a Colored Circle, Polyhedra in a...”

2 Table of Contents: “.... Coloring Integers – Entertainment of Mathematical Kind -E28. The Erdős Number and Hamiltonian Mysteries...”

3 Table of Contents: “..., with Numerous Applications -- Open Problems in Euclidean Ramsey Theory -- Chromatic Number of the Plane and Its...”

4 Table of Contents: “... -- Chromatic Number of the Plane: The Problem -- Chromatic Number of the Plane: An Historical Essay...”

5 Table of Contents: “... of the Chromatic Number of the Plane: How O’Donnell Unified Ramsey Theory and No One Noticed -- 47. O'Donnell Earns...”

6 Table of Contents: “... Numbers -- The Borsuk Problem Conquered -- Etude on the Chromatic Number of the Plane...”