What are the two types of stereoisomers?

The two types of stereoisomers are enantiomers and diastereomers. Enantiomers are non-superimposable mirror images of each other, typically occurring in chiral molecules, while diastereomers are stereoisomers that are not mirror images and differ in configuration at one or more chiral centers. These differences in spatial arrangement can significantly affect the properties and reactivity of the compounds.