One simple method of offering transitions in your writing is to use pronouns. Pronouns are stand-ins (they substitute for nouns) that refer back to your subject: thus, they provide a link—a transition. If you say, “Computer research indicates high usage in the daytime. It also indicates …,” the reader knows that it refers back to computer research. You’ve provided transition without any boring repetition. However, use caution with your pronouns. Make sure they enhance clarity rather than confuse your meaning. For example: “John and Mark stopped by the gym, and then he stopped to make a call.” It’s impossible for the reader to know exactly who “he” refers to in this sentence. Be careful how, when, and where you place pronouns. Keep them close to their nouns, and if any possibility of confusion exists, restate the noun or start a new sentence: “John and Mark stopped by the gym, and then Mark stopped to make a call.”