Staccato sentences can be used for a variety of effects in writing; they are, by nature, short and often emphatic. For example: "I said no." "Just no." "No!" This series of three staccato sentences have three words, two words, and one word, respectively, that convey the same message with gradually increasing vehemence. Staccato sentences are concise and focus the reader or listener on content because there are no unnecessary words to obscure meaning.
Asyndeton is especially effective in speech writing because of the quickened, rhythmic pace it produces with the omission of conjunctions. Here is a before and after example:
Without asyndeton: "Our country values government of the people and by the people and for the people."
With asyndeton: "Our country values government of the people, by the people, for the people.
Anaphora, the repetition of a word, words, phrases, or clauses at the beginning of a succession of sentences, is also highly effective in speech writing because repetition makes for emphasis, rhythm and memorability. A well-known example is "I have a dream," a phrase that Dr. Martin Luther King Jr. repeats at the beginning of sentences in his iconic speech.