Thermodynamic data of copolymer solutions are a necessity for industrial and laboratory processes and serve as essential tools for understanding the physical behavior of copolymer solutions, intermolecular interactions, and the molecular nature of mixtures. Scientists and engineers in both academic and industrial research need this data. This handbook compiles original data gathered from approximately 300 literature source and provides 250 vapor-pressure isotherms, 75 tables of Henry's constants, 225 data sets, and 70 PVT tables for more than 100 copolymers and 165 solvents. It is the first complete overview of this complex subject.