The study embodied in the present book entitled "Solvation of Some -amino Acids in Aquo-organic Binary Solvents" deals with the determination of the various thermodynamic properties such as solubility, molar volume, Gibbs free energy, enthalpy and entropy of solutions of a series of homologous -amino acids with graded increase of -CH2- (hydrophobic moiety) group; like glycine, DL-alanine, DL- -amino butyric acid and DL-nor-valine in aqueous mixtures of protic ethylene glycol (EG), quasi-aprotic 2-methoxyethanol (ME) and dipolar aprotic 1, 2-dimethoxyethane (DME) in three different chapters.