Is it a good idea or bad idea to use rel="author" and rel="publisher" together?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Melissa Klaver: Hi folks! Here's my dumb question of the day: is it a good idea or bad idea to use rel="author" and rel="publisher" together? I recently viewed the source code for a website who has done this. I know to use "author" for personal authorship and "publisher" for a company's authorship, but is using them together considered to be good practice, or pushing the boundaries thereof? ;
  Thanks in advance!
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  Mike Stetzer: I asked a similar question a few weeks back. I don't think it's bad to use both, as long as you're using authorship where it's appropriate. ;
  
  When I use Google's Structured Data Testing Tool and put in our company's URL, the image that is displayed is our company's google+ page image, not the authorship. I found that pretty interesting.
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  Masatake Wasa: They denote distinct relationships between Google+ entities and the web page / site, so using them both on the same page can be a good thing. You might want to read something like http://googlewebmastercentral.blogspot.com/2013/08/relauthor-frequently-asked-advanced.html for further information.
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  Melissa Klaver: Thank you +Mike Stetzer  ;and +Masatake Wasa  ;for the info! I figured it wasn't necessarily a bad practice, to show your own authorship and affiliation with the company. ;
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  Sitegains: I'd be interested to hear the opinion of someone like +Mark Traphagen on this matter...
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  Mark Traphagen: Yes, it's not only fine, it's encouraged. Authorship is for verifying the content of individual authors on your site, and rel="publisher" is for verifying the official connection between your brand's official site and it's Google+ Page.
  
  If you want to know more, see my article ; http://www.virante.org/blog/2013/06/14/relauthor-or-relpublisher-which-should-i-use/
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  Melissa Klaver: Thank you, +Sitegains  ;and +Mark Traphagen  ;your feedback is appreciated!
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  Sitegains: Nice one +Mark Traphagen , thanks for clarifying.