The Editorial Board of the Social Sciences Information Review respectfully presents the full text of the “Introduction” by Assoc.Prof.Dr. Philippe Le Failler - Head Representative of the French Institute of Far Eastern Studies (EFEO) in Hanoi, for the book “The Process of Establishing and Exercising Vietnam’s Sovereignty over the Paracel and Spratly Islands during the French Colonial Period” by Prof. Dr. Ho Si Quy, published by the Social Sciences Publishing House in December 2025. The article was written in French and translated into Vietnamese by Nguyen Thuy Ha My.