Researcher Dao Thi Dien has devoted her whole life to Hanoi. Hanoi in her memory is the memories in Hang Dau flower garden near the ancient round water tower, the jingle of the tram along Quan Thanh Street, the Phan Dinh Phung street with the city gate still intact from the shells of the French colonialists, the road to Chu Van An School in the middle school and high school years... Writing about Hanoi, recreating the glorious and painful historical years of Hanoi, for her is both a passion and a responsibility to her home cityNha nghien cuu Đao Thi Dien danh tron ca cuoc đoi minh voi Ha Noi. Ha Noi trong ky uc cua ba la nhung ky niem o vuon hoa Hang Đau gan thap nuoc tron co kinh, la tieng tau đien leng keng doc pho Quan Thanh, la pho Phan Đinh Phung co cong thanh con nguyen vet đan phao cua thuc dan Phap, la con đuong toi truong Chu Van An nhung nam hoc cap II, cap III,... Viet ve Ha Noi, tai hien nhung nam thang lich su huy hoang lan thuong đau cua Ha Noi, đoi voi ba vua la niem say me, vua la trach nhiem voi thanh pho que huong