Your panelists have dealt with big publishers, small press publishers, packagers, editors, and agents. They have wisdom to impart on deadlines, galleys, self-publishing, and more. They understand how advances, royalties, and reserves for returns work. They've written query letters, attended pitch sessions, schmoozed at con parties, and written work-for-hire. They've authored, edited, and critiqued. Best yet, they're willing to dish about it.