Text should be taut. Every sentence should be necessary.
Tone
One topic per section
Have one idea per sentence or paragraph
Use short sentences with simple structure.
Use an example whenever it adds clarification. Each example should be an illustration of one concept; if you don't know what an example is illustrating, change it.
A common error is to include material such as definitions or theorems without indicating why the material is useful. Motivate the reader at each major step in the exposition: explain how a definition (theorem, lemma, whatever) is to be used, or why it is interesting, or how it fits into the overall plan.
Within a paper, each topic should be discussed to a similar depth.
Avoid excessive use of indirect statements
Use direct style (active voice) rather than indirect statement(passive voice)
Not use artificial use of verbs like "perform", "utilize", "achieved", "carried out", "conducted", "done", "occurred", and "effected"
Obfuscation: Making of statements in ambiguous or convoluted terms, with the intention of hiding meaning, or of appearing to say much while actually saying little.
Straw man: indefensible hypothesis that an author describes for the sole purpose of criticizing ti. (Suggesting new hypothesis)
Citation: Three styles of citation are illustrated above. One is the ordinal-number style, in which entries in the reference list are numbered and are cited by their number. The other is the name-and-date or Harvard style in which entries are cited by author name using either square or round brackets. A third common style is to use superscripted ordinal numbers. Or uppercase abbreviation.
Note, however, that many publishers insist on a particular style.
Do not split infinitives or do not begin a sentence with "and" or "but".