This document provides an introduction to phonetics. It discusses that phonetics is the study of speech sounds and is broken down into three categories: articulatory phonetics which is the production of sounds, acoustic phonetics which is how sounds travel, and auditory phonetics which is how people perceive sounds. It also discusses the International Phonetic Alphabet which is a system used to represent speech sounds, and provides examples of consonant, vowel, diphthong sounds and their phonetic symbols.