How important are cover letters (and do I need one)?

Resume Tips
#1

How important are cover letters (and do I need one)?

#2

Cover letter is important to attract recruiter to have a look at your resume. Generally it is made when we upload our resume of some online job application site. A recruiter open that resume which he has well designed cover letter

#3

Yes it should be only of one page. While devising cover letter you should ensure that you are briefly describing about yourself. Do not make it too lengthy