The average number of words per paragraph should not exceed 75. The average number of words per sentence should not exceed 25. The average number of words per clause should not exceed 12. 5. Finally, use your editorial pencil vigorously. Cut out unnecessary words.
Extra words slow the reader and create opportunities for inconsistencies and ambiguities.
Cut out the polysyllables, the gobbledy gook and the jargon. Use active verbs and a straight-forward sentence structure. Put yourself in his shoes. Make certain you are using words that will be understood in the way you want them understood. Your job in writing is to convey information and instructions to people who need to know them.