This free PowerPoint presentation covers optical isomerism, including structural and stereoisomerism. It explains chirality, enantiomers, and the use of Cahn-Ingold-Prelog rules for naming. The presentation details how plane-polarized light interacts with optical isomers and the effects of racemic mixtures. It also explores real-world applications, such as optical isomers in pharmaceuticals and food flavors. Ideal for students and educators, this resource simplifies complex isomerism concepts with clear diagrams and explanations.