Master Organic Chemistry - Types of Isomers: Constitutional Isomers, Stereoisomers, Enantiomers, and Diastereomers
Virtual Textbook of Organic Chemistry - General Summary of Isomerism and Molecular Descriptors
Virtual Textbook of Organic Chemistry - General Summary of Isomerism and Molecular Descriptors
Nice set of figures to help organize the different types of isomerism.
University of Calgary - StereochemistryDefinition of the main types of isomers.
Topic Resources
figures for classroom presentation