Richard Ogden 
Introduction to English Phonetics [PDF ebook] 

In the third edition of this bestselling introductory textbook, Richard Ogden presents the concepts, terminology and representations needed for understanding how English is pronounced globally. He guides you through the vocal tract, explains clearly how the sounds of speech are made, and introduces phonetic transcription and acoustic analysis. This textbook uses naturally-occurring conversational speech throughout so you can get to know the details of everyday talk (and not just the careful pronunciations presented in dictionaries.) Written in a user-friendly style with plenty of examples, this textbook is a great starting point for your first university course on English phonetics.