Contents: On Complex Numbers in Higher Dimensions; Some Geometrical Results Associated with Secant Hyperbolic Functions; On the Dynamic Geometry of Kasner Quadrilaterals with Complex Parameter; Complex Numbers Related to Semi-Antinorms, Ellipses or Matrix Homogeneous Functionals; On Horadam Sequences with Dense Orbits and Pseudo-Random Number Generators; The Role of Complex Analysis in Modelling Economic Growth; On Multivalent Analytic Functions Considered by a Multi-Arbitrary Differential Operator in a Complex Domain; Certain Integral Operators of Analytic Functions; Subclasses of Multivalent Meromorphic Functions with a Pole of Order p at the Origin; Coefficient Estimates and the Fekete–Szegö Problem for New Classes of m-Fold Symmetric Bi-Univalent Functions; Starlikeness Associated with the Van Der Pol Numbers; Close-to-Convexity of q-Bessel–Wright Functions