This document discusses different types of isomers found in organic compounds. It defines isomers as compounds that have the same molecular formula but different physical and chemical properties. There are two main types of isomers - structural isomers and stereoisomers. Structural isomers have the same molecular formula but different bonding arrangements, and include chain isomers, position isomers, functional group isomers, metamers, and tautomers. Stereoisomers have the same molecular structure but different spatial arrangements, and include conformational and configurational isomers. Examples are provided for each type of isomer to illustrate the differences between them.