Ad-Dhad Newsletter: An informative newsletter published by the Scientific and Technical Research Center for the Development of the Arabic Language, issued every four months. It monitors research dynamics and various activities at both research and administrative levels of the center and its two units in Ouargla and Tlemcen. Ad-Dhad newsletter serves as a communication pillar that enhances the overall social visibility of the center and its scientific services, highlighting the efforts of those in charge of its various departments to achieve the purpose of its establishment, which is developing and promoting the Arabic language. This periodical publication expands to approach the status of a magazine, offering contributions from specialists and national competencies in developing the Arabic language. Ad-Dhad newsletter is addressed to those interested in the center’s activities and developments related to the promotion of the Arabic language. The editorial staff gladly welcomes all suggestions and additions from Arabic language enthusiasts and servers that would develop its services.