The special book about the love between teachers and students - by teacher Le Khac Hoan - (author of the First Prize in the Writing Contest for Teachers and Schools in 1961) was first published in 1964 and became a phenomenon in Vietnamese publishing history has spread to almost all schools and has been handed down by teachers. The "School's" school spirit of the book has not wavered from the difficult war years to the present day and has become the "beloved" pillow of many generations of students, Students for more than 50 years.
