Preferential Crystallization -- Mechanism and Scope of Preferential Enrichment, a Symmetry-Breaking Enantiomeric Resolution Phenomenon -- Racemization, Optical Resolution and Crystallization-Induced Asymmetric Transformation of Amino Acids and Pharmaceutical Intermediates -- Advantages of Structural Similaritiesof the Reactants in Optical Resolution Processes -- Dutch Resolution of Racemates and the Roles of Solid Solution Formation and Nucleation Inhibition -- New Resolution Technologies Controlled by Chiral Discrimination Mechanisms -- Molecular Mechanisms of Dielectrically Controlled Resolution (DCR) -- From Racemates to Single Enantiomers – Chiral Synthetic Drugs over the last 20 Years.