Combinatorics of Covers of Complexified Hyperplane Arrangements -- Homological Aspects of Hyperplane Arrangements -- Pencils of Plane Curves and Characteristic Varieties -- Lectures on Orlik-Solomon Algebras -- Local Systems and Constructible Sheaves -- Geometry and Combinatorics of Resonant Weights -- The Characteristic Quasi-Polynomials of the Arrangements of Root Systems and Mid-Hyperplane Arrangements -- Toric Varieties and the Diagonal Property -- to Plane Curve Singularities. Toric Resolution Tower and Puiseux Pairs -- Surface Singularities Appeared in the Hyperbolic Schwarz Map for the Hypergeometric Equation -- On the Extendability of Free Multiarrangements -- Problem Session.