Everyone has always been told not to judge a book by its cover. If this is the rule, then what makes you want to read a book? Of course you are going to look at the cover to decide if you are interested in the rest of the book. You may also flip to the back cover of the book to read a brief summary of the book.
You will want to read the reviews that critics gave the book so you will know what kind of quality to expect. The same holds true for the cover letter than accompanies your resume. It serves as book jacket to your resume, providing information that piques interest, but does not give the entire story away. A good cover letter explains your story line and makes hiring managers eager to find out more about you.
Here are the important points to remember about cover letters: