Introduction to the corner of the prologue hall: After the second large-scale display renovation of the memorial hall, multimedia display and interaction with tourists were added, which greatly enriched the content of the exhibition hall and injected new vitality into the memorial hall. In the preface hall, visitors can use electronic devices to view more than 80 letters between Zhang Taiyan and his beloved wife Tang Guoli, and more truly feel Zhang Taiyan's life emotions.