Lecture series——Citizen Space is a series of long-term non-profit lectures for the public，which is about some practical knowledge of daily life .It is held in the south of the fourth floor of Dongguan library. Since May 2007, the Citizen Space has recruited more than 30 volunteers in the community and established several themes relevant to daily life, such as health care, law, car, decoration salon, mental health, financial, and travel. They were all well received by the public.