Ch-Acids deals with the acidity of all organic compounds containing C-H bonds. CH-acidity characterizes thermodynamic stability of carbanions in a medium containing a proton donor as carbanion acceptor. The book primarily explains proton transfer stereochemistry or structure in relation to CH-acidity patterns. Methods to study equilibrium acidity; tabulation of pKa values of CH-acids; and equilibrium acidity as a function of CH-acid structures are presented. Topics on kinetic CH-acidity; stereochemistry of proton transfer in CH-acids; and factors obscuring experimental observation of the action of the Bronsted equation are discussed extensively. The text will be of importance to organometallic and organic chemists.