Word Choice
How can I choose the best words for my sentences?
Commonly confused words: this site offers an alphabetized, clickable list of homophones—words that sound the same but mean different things—and explains their differences and correct uses.
More common mistakes in word choice and usage
Tone
Style, voice, and tone overview: tone is the attitude of the writer toward the subject and audience.
Using the proper tone for business writing: writers should use a tone appropriate to their purpose.