This document provides an explanation of the differences between the Latin abbreviations "i.e." and "e.g." It notes that "i.e." stands for "id est" meaning "that is" and is used to clarify or rephrase something, while "e.g." stands for "exempli gratia" meaning "for example" and introduces examples. It offers a memory trick to remember the difference and provides examples of how to properly use each abbreviation in sentences.