Resumes should be aimed at different types of units and highlight their professional expertise in resumes.
Some employers may pay more attention to practical experience, so they should highlight practice and put it in a conspicuous position. Some employers may attach importance to the professional foundation, academic performance and other certificates of job seekers, which should be highlighted in their resumes.
Usually, resumes don't need a cover. The cover of a resume only plays a beautiful role and will not give you extra points, so a resume with a cover is the same as a resume without a cover. What employers value most is whether your resume content is what their unit needs. After all, this is not a draft, so the cover feels redundant.
Therefore, when job seekers are wondering whether they need a resume cover, they might as well spend more time thinking about the nature of the position you are applying for and the culture of the company, and combine these to see if they need a resume cover.