Use the CommKit, Broad Institute"The CommKit is a collection of guides to successful communication in the biological sciences, written by the BRCL Fellows (MIT Communication Lab, 2019)." Check out the modules under the Professional heading for information to amp up your curriculum vitae (cv) and cover letter. In addition, use the modules under the Application heading for information to rock your NSF personal statement, fellowship proposal, or graduate school personal statement.
MIT Communications Lab. (2019). Use the Commkit, In Broad Research Communication Lab: Helping scientist communicate. Retrieved from: http://mitcommlab.mit.edu/broad/use-the-commkit/