This document provides an introduction to phonetics. It defines phonetics as the study of speech sounds and notes there are three types: acoustic, auditory, and articulatory. It describes vowels as sounds with an open air passage and consonants as sounds where the air stream is restricted. It discusses place and manner of articulation for different consonant sounds. It also outlines the organs of speech involved in sound production and the International Phonetic Alphabet used to represent speech sounds.