The composition of writing data is dynamically reedited from a registered group of writing data on the basis of the request contents of an individual reader, or the contents of the writing data are dynamically reedited from the registered group of writing data on the basis of the personal information of the reader, and the reedited writing data is provided to only the reader as a publication. The contents and configurations of an original to be published are dynamically reedited on the basis of the personal information and the request of the reader who is a user, and a publication having contents and a composition which are unique to the reader can be issued.