Commentaries -- A Survey by the Editors -- I. Thermodynamic Limit for Coulomb Systems -- I. 1 Existence of Thermodynamics for Real Matter with Coulomb Forces -- I. 2 The Constitution of Matter: Existence of Thermodynamics for Systems Composed of Electrons and Nuclei -- II. Hard Sphere Virial Coefficients -- II. 1 Suppression at High Temperature of Effects Due to Statistics in the Second Virial Coefficient of a Real Gas -- II. 2 Calculation of Exchange Second Virial Coefficient of a Hard-Sphere Gas by Path Integrals -- III. Zeros of Partition Functions -- III. 1 Monomers and Dimers -- III. 2 Theory of Monomer-Dimer Systems -- III. 3 A Property of Zeros of the Partition Function for Ising Spin Systems -- III. 4 A General Lee-Yang Theorem for One-Component and Multicomponent Ferromagnets -- IV. Reflection Positivity -- IV. 1 Existence of Phase Transitions for Anisotropic Heisenberg Models -- IV. 2 Phase Transitions in Anisotropic Lattice Spin Systems -- IV. 3 Phase Transitions in Quantum Spin Systems with Isotropic and Nonisotropic Interactions -- IV. 4 Phase Transitions and Reflection Positivity. I. General Theory and Long Range Lattice Models -- IV. 5 Phase Transitions and Reflection Positivity. II. Lattice Systems with Short-Range and Coulomb Interactions -- IV. 6 Lattice Models for Liquid Crystals -- IV. 7 Existence of Néel Order in Some Spin-1/2 Heisenberg Antiferromagnets -- IV. 8 The XY Model Has Long-Range Order for all Spins and all Dimensions Greater than One -- V. Classical Thermodynamics -- V. 1 The Third Law of Thermodynamics and the Degeneracy of the Ground State for Lattice Systems -- V. 2 A Guide to Entropy and the Second Law of Thermodynamics -- V. 3 A Fresh Look at Entropy and the Second Law of Thermodynamics -- VI. Lattice Systems -- VI. 1 Properties of a Harmonic Crystal in a Stationary Nonequilibrium State -- VI. 2 The Statistical Mechanics of Anharmonic Lattices -- VI. 3 Time Evolution of Infinite Anharmonic Systems -- VI. 4 Lattice Systems with a Continuous Symmetry III. Low Temperature Asymptotic Expansion for the Plane Rotator Model -- VII. Miscellaneous -- VII. 1 The Finite Group Velocity of Quantum Spin Systems -- VII. 2 The Classical Limit of Quantum Spin Systems -- VII. 3 A Refinement of Simon's Correlation Inequality -- VII. 4 Fluxes, Laplacians, and Kasteleyn's Theorem -- Selecta of Elliott H. Lieb -- Publications of Elliott H. Lieb.