The collective monograph describes the investigation of specific determinants and mechanisms of disorders of verbal and non-verbal communication, voice, linguistic-cognitive and orofacial processes from the logopedic and special pedagogical point of view with transdisciplinary overlap into the linguistic, vocological, physiotherapeutic and psycholinguistic areas for use by the academic, scientific, clinical, educational, and counselling public. The book deals with 9 selected disorders and specifics of communication, including phonation and resonance, phatic functions, lexia and orofacial, neurodevelopmental and symptomatic speech disorders. It brings many original and innovative insights expanding the current state of knowledge in the sciences of human communication and speech-language therapy.