Selected papers of Freeman Dyson : with commentary Foreword Elliott Lieb Preface and Commentary Freeman J. Dyson Some Guesses in the Theory of Partitions A Theorem on the Densities of Sets of Integers The Approximation to Algebraic Numbers by Rationals On the Product of Four Non Homogeneous Linear Forms A New Symmetry of Partitions Mappings and Symmetries of Partitions Fourier Transforms of Distribution Functions The Rate of Growth of Functions Defined by Dirichlet Series Quaternion Determinants A Theorem in Algebraic Topology Continuous Functions Defined on Spheres Missed Opportunities A Walk Through Ramanujans Garden The Radiation Theories of Tomonaga Schwinger and Feynman The S Matrix in Quantum Electrodynamics The Renormalization Method in Question Electrodynamics Divergence of Perturbation Theory in Quantum Electrodynamics Connection between Local Commutativity and Regularity of Wightman functions Integral Representations of Causal Commutators