The document provides information about English vowels, including their description and four factors that affect their shaping. It presents the English vowel triangle which diagrams the pure vowel sounds. It then examines each pure back vowel ([u], [ʊ], [o], [ɔ], [ɑ]) and pure front vowel ([i], [I], [e], [æ]), including potential spelling and problems producing the sounds. Examples words and practice phrases are provided for each individual vowel.