Loglines and queries are how you market your screenplay.
Marketing a script means sending it out to people who might buy it or give you work because they like your style of writing. It means constantly researching and finding agents, managers, and producers who might be interested in your script.
A lot of other writers—me and a few hundred thousand more—are competing with you for those few high money sales. So, make that extra effort to get your work noticed and read.
As I've stressed in previous chapters, Celtx makes it easy for us to keep things relating to a script all in one place, the file that I call the "Celtx script container."
As shown in the following screenshot, in the Project Library, I have the script, its logline, ...