In 2017, Hong Kong celebrated the 20th anniversary of its return to the motherland. The street map of this year is also made on this subject and especially with "e;20th Anniversary of Hong Kong's Return, City and Live Mark"e; as the special subject to integrate the gradual extension of the Hong Kong coastline in these years with the transformation of the city appearance and narrate Hong Kong's core cultural and historical mark so that reader can remember every bit of Hong Kong. This book has more than 120 detailed Hong Kong core area maps, which are small sized and easy to carry.