The book "Numerical Geometry, Grid Generation and Scientific Computing" offers a comprehensive collection of research findings and developments in the fields of numerical geometry, scientific computing, and numerical simulation. It places a particular emphasis on grid generation and related issues, with this year's focus on Voronoi diagrams and their applications to celebrate the 150th anniversary of G.F. Voronoi. The content strikes a balance between engineering algorithms and mathematical foundations, providing an overview of the latest advancements in numerical geometry as well as grid generation and adaptation. The topics covered are diverse, ranging from quasi-conformal and quasi-isometric mappings to dual aspects in mathematical programming and numerical geometry. The applications of the discussed methods are interdisciplinary, encompassing problems from mathematics, physics, biology, chemistry, materials science, and engineering.