Retail Shop Cover Letter Samples How To Write A Cover Letter?? Easy Points??!?

How to write a cover letter?? easy points??!? - retail shop cover letter samples

I have no experience writing a letter. This is not real, is a kind of career as a mission.
I need an example please
for work, I prepare for a part time job as a customer to buy in a store, I write. or an internship in a company magazine or something