You must essentially sell yourself to the hiring manager, like in this professional sales assistant cover letter sample. (cover-letter-now.com)
Moreover, they also help to save a great deal of time which too is one of the many uses and benefits of sales assistant cover letter templates. (sampletemplates.org)
If you are still confused, then read on the below written example sales assistant cover letter, which will give you a better idea. (bestsampleresume.com)