Accent modification is offered by various certified speech-language trainers, linguists, and specialists in ESL. Instructor-led courses typically start with a speech assessment to determine a student’s unique needs. Speech production is a very complicated process involving coordinating movements of the lips, tongue, jaw, vocal cords, and respiratory system. Speakers from different language backgrounds have different speech patterns when speaking English as they are attempting to implement their own language’s pronunciation rules while speaking English. Even people from the same language background can have differing speech patterns based upon the age at which they learned English, the characteristics of their teacher’s speech, and influences of other languages they may speak.