Non-verbal communication, speech and language are the means of human communication. A person can be affected by speech disorder. This can be in the person’s cognition, speech, swallowing, language and voice. The common disorders observed amongst children include language delay, face learning difficulties, specific language impairment, physical disabilities, hearing impairment, specific difficulties in producing sounds, stammering, cleft palate, social interaction difficulties, autism, cerebral palsy, dyslexia and voice disorders. The communication problems and speech disorders that afflict adults are a result of head injury, stroke, motor neuron disease, Parkinson’s disease, Huntington’s disease, multiple sclerosis, cancer of the head, neck and throat, dementia, mental health issues, voice problems, physical disabilities, learning difficulties, hearing impairment, stammering and transgender voice.