Intro -- Contents -- Preface -- The work of Stephen Vági -- On fractional calculus associated to doubling and non-doubling measures -- Fluids and singular integrals -- The well-posedness of non-linear dispersive equations: Some recent developments -- The BMO extended family in product spaces -- Mean convergence of Cesŕro means of Laguerre expansions -- Variation inequalities for singular integrals and related operators -- A maximal function on the discrete Heisenberg group with applications to ergodic theory -- Problems -- Index.