The document discusses the active and passive voice. The passive voice emphasizes the action being performed rather than the person performing it. It is used to present ideas objectively or avoid assigning blame. The active voice is preferred for business writing as it is shorter, more personal, and forceful. The difference between active and passive is that the active voice has the subject perform the action, while the passive voice has the subject receive the action. Care should be taken to avoid switching voices within a sentence and ensuring proper grammatical construction when using the passive voice.