structural:reformatting
Popularizing science

Speaking about his activities in popularizing science, Sagan said that there were at least two reasons for scientists to share the purposes of science and its contemporary state. Simple self-interest was one: much of the funding for science came from the public, and the public therefore had the right to know how the money was being spent. If scientists increased public admiration for science, there was a good chance of having more public supporters. The other reason was the excitement of communicating one's own excitement about science to others.

Following the success of Cosmos, Sagan set up his own publishing firm, Cosmos Store, to publish science books for the general public. It was not successful.