What is the difference between link rel="canonical" and meta name="canonical"?

[Ideas-Money-Art]

Hi mozzers,

I would like to know What is the difference between link rel="canonical" and meta name="canonical"? and is it dangerous to have both of these elements combined together?

One of my client's page has the these two elements and kind of bothers me because I only know  link rel="canonical" to be relevant to remove duplicates.

Thanks!

[Linda-Vassily]

This older question may be useful to you: http://moz.com/community/q/meta-name-canonical-content-url-usage-instead-of-link-rel

[Ideas-Money-Art]

Thank you Linda!