Essays in Geometry : dedicated to Norbert A’Campo This volume consists in a collection of essays dedicated to Norbert ACampo on the occasion of his 80th birthday. The subject is geometry in the broadest sense. The topics include hyperbolic and super hyperbolic geometry 3 manifolds metric geometry mapping class groups linear groups Riemann surfaces Teichmüller spaces high dimensional complex geometry differential topology symplectic geometry singularity theory number theory algebraic geometry dynamics mathematical physics and philosophy of mathematics. The book gives a fairly comprehensive overview of the wealth of current research in geometry. Keywords: hyperbolic geometry super hyperbolic geometry 3 manifolds singularities dynamical systems metric geometry mapping class groups linear groups Riemann surfaces Teichmüller space high dimensional complex geometry differential topology symplectic geometry number theory algebraic geometry mathematical physics philosophy of mathematics