In accordance with Official Letter No. 16/PGDĐT – CV/HĐĐ dated January 10, 2022, from the Department of Education and Training of Ha Dong District regarding participation in the 51st UPU International Letter Writing Competition 2022, students from grades 4 and 5 of Van Bao Primary School actively participated, resulting in 51 high-quality entries that met the competition rules and were submitted to the Organizing Committee. Through this competition, students honed their writing skills, stimulated creative thinking, enhanced their social knowledge, and contributed to strengthening solidarity and friendship among young people. Using handwritten letters, the competition encouraged students to preserve the traditional habit of letter writing, a form that evokes many emotions and memories for both senders and recipients. It also provided an opportunity for students to learn more about the role of the postal service in life and social development.