The Journal of Nonsmooth Analysis and Optimization is a scholarly journal, provided on a Fair Open Access basis, without cost to both readers and authors. It disseminates peer-reviewed articles in all aspects of nonsmooth analysis relevant to optimization and equilibrium problems such as analysis of infinite-dimensional algorithms for nonsmooth optimization and equilibrium problems, in particular in function spaces, necessary and sufficient optimality conditions based on generalized derivatives, stability properties – including regularization theory – of nonsmooth optimization and equilibrium problems, solution properties such as preservation of continuity or discontinuity properties of problem data, problem reformulations such as convex relaxation and lifting, optimization of variational inequalities and nonsmooth equations, bi- and multilevel optimization, robust and chance-constrained optimization.