Many book editors and agents say that they read the first paragraph of a manuscript, and if they like it, they skip ahead to read some dialogue. If the dialogue is strong, they go back to page one and keep reading. If the dialogue is weak, the editor or agent sets down the manuscript, and the chances for publication (with that particular house or agency, anyway) end there. Knowing how to write good dialogue, then, is crucial to publication—and readership (and of course, if anything, is even more crucial in the arts of playwriting and scriptwriting).