When I began editing about 30 years ago, I noted several errors that consistently occurred in the manuscripts I worked on. Sentence fragments, as well as run-ons, interfered with the flow and sometimes the clarity of a literary piece. Run-on sentences are self-explanatory and easy to point out to a writer. Fragments are a bit more difficult, especially when a writer seeks to justify their usage. The big question is whether a reader will agree with the author or find the fragment disjointed or incomplete. But these are topics for another post. By a landslide, the biggest bane of the authors whose books I edited was punctuation, with the lowly comma taking first place among the common troublemakers. End punctuation is generally clear from the structure of the sentence, but its absence results in a run-on sentence, also call a fused sentence according to Grammarly. Internal punctuation is another story. To some extent, it can be used at the discretion of the writer; and at times, pun...