Knowing the styles they use and abiding by them will make you appear more experienced in that field of writing. Once you have stated a character's title, described how she looks or what he does, don't do it again unless you have a very good reason. If you feel that it's important to remind the reader who this person is, say it differently. Repetitions of all kinds can be annoying. If you wish to repeat something for emphasis, put a new twist on it.
Continuity is defined as a continuous or connected whole.
A transition is a passage that links one scene or topic to another. After you have done all the editing you can, read your entire manuscript through from start to finish at one sitting, if possible, keeping these guidelines in mind. Maintaining a logical continuity helps the writing flow and makes it easier for the reader to follow. Good transitions can cure that problem.