An Invitation to Ehrhart Theory: Polyhedral Geometry and its Applications in Enumerative Combinatorics -- Moving Curve Ideals of Rational Plane Parametrizations -- Survey on Counting Special Types of Polynomials -- Orbit Closures of Linear Algebraic Groups -- Symbolic Solutions of First-Order Algebraic ODEs -- Ore Polynomials in Sage -- Giac and GeoGebra - Improved Gröbner Basis Computations -- Polar Varieties Revisited -- A Note on a Problem Proposed by Kim and Lisonek -- Fast Algorithms for Refined Parameterized Telescoping in Difference Fields -- Some Results on the Surjectivity of Surface Parametrizations -- Rational Normal Curves as Set-Theoretic Complete Intersections of Quadrics.