This document summarizes the key concepts of reference and inference in semantics and pragmatics. It defines reference as using linguistic forms to allow identification of something based on shared speaker-listener knowledge. Inference is defined as predictions or guesses made by the listener in response to information stated to understand the speaker's intended reference. The document then discusses aspects of reference and inference, including referential and attributive uses, names and differences, the role of co-text, and types of anaphoric reference.