"To design the cover" means to create or craft the outer part of something, such as a book, magazine, or album, which includes the front and sometimes back, that visually represents its content or purpose. Full definition
If you are planning to conduct a proactive search to get an Animal internship, to hunt down not yet advertised vacancies, you need a specially designed cover letter for the same. (coverlettersandresume.com)
By using a professionally designed cover letter template, you increase the chances of standing out from the crown of applicants and getting the job. (template.net)
But, if you do, then by all means, have a professional book cover designer design the cover of your book. (somedaybox.com)