This document discusses run-on sentences and comma splices. Run-ons occur when two complete sentences are fused together without proper punctuation. Comma splices are similar but use only a comma between the sentences. To find run-ons, search for conjunctions like "and" or "but" and fix by adding commas or separating the sentences. For run-ons without conjunctions, read sentences aloud backwards. To find comma splices, search for commas and fix by adding conjunctions or separating the sentences with periods or semicolons.