It is stated that dyslexia is a disorder of auditory origin. The meaning of dyslexia is divided into the medical and educational aspects of the disease in an attempt to lead the teacher to emphasize hearing in education rather than merely sight. The role of the teacher, doctor, and psychologist in the history of dyslexia is discussed. In dealing with the proposed concept of dyslexia, it is suggested that there is an interaction between audio and phonatory functions and that this function is important in reading. The methods of audio-psycho-phonologic diagnosis are treated along with audio-psycho-phonologic treatment using filtered music, the maternal voice, and electronic auditory equipment. The conclusion reached is that better listening leads to better reading. (JM)