Direct approach may be used if appropriate . Sales letters are written to convince the reader that the product or service is worthy of consideration, letter includes sufficient evidence of usefulness to the purchaser, price is revealed, central selling point is apparent, specific action desired is identified, and message is ethical and legal. Language is objective, active verbs and concrete nouns predominate, sentences are relatively short and varied, significant words and thoughts are in emphatic positions, ideas cohere, changes in thought are smooth, expression is original, and unity is achieved by tying the last paragraph to the first paragraph.
Appropriate format is used.