Richly detailed and thoroughly accessible, Accents and Dialects for Stage and Screen eschews quasi-helpful metaphors and idiosyncratic 'respelling' systems in favour of high quality primary source material and the best step-by-step guidance you can get with learning an accent in lieu of hiring a Dialect Coach in person.
This complete collection of Paul Meier's individual accent CDs outlines all the most frequently requested accents from the exhaustive list of actors that he coaches every day.
ADFSS uses IPA (International Phonetic Alphabet) to show exactly how sounds shift from accent to accent and accurately map where to place them, giving a clear and user-friendly breakdown of all the terms used.
Each section is based on clips of native speakers, which can be found online at IDEA (International Dialects of English Archive), the vast online resource of accent samples of which Paul Meier is the Founder and Director.
Sound changes are broken down in order of importance, with the most distinguishing sounds first and additional touches later on in the section should you have time to incorporate these too. To help you learn the sound changes, they are demonstrated by the author in specially devised practice sentences.
For anyone who wants to speak in an accent other than their own, this book excels at demystifying the process, and will also fuel your curiosity for the subject of accents in their wider context. As a Dialect Coach myself, I would not hesitate to recommend it to my clients.