Search result studies have shown that search results that display authorship have the potential for higher number of clicks since it establishes a higher trust factor. In case you have not used authorship then here are some authoritative tips to get the most out of Google Authorship.
You need to ensure that you abide by all Google guidelines on authorship. For instance, you must not use authorship pages which list articles or on those pages that happen to be used as article feeds. You can instead use authorship for URLs with a single article or content created by a single author. You should definitely put in a byline on such pages as well as ensure that their Google+ profile has the exact same name.
You must also make sure that you do not use authorship for pages that contain property listings or product descriptions since visitors may have clicked on a link to read an actual article that bears relevance to their specific queries.
If you plan to use authorship for your business website then you must use the rel=publisher option since it links your entire business site with your Google+ page. As an individual author that produces original content, the rel=author option will be more suited to attract visitors and major search engines such as Google.
Even though authorship is currently not suitable for pages with multiple authors, Google seems to be working towards a solution to include multiple authors so that you do not need to tag only one author on such pages. You must also understand that authorship must be used only for a real person. You must not use it for a company or business or a persona. You can add credibility and trust only when you prove to your audience that you have used authorship as a genuine person.
In case you need to provide content in different languages that belong to a single author then you must ensure that they are all linked to a single Google+ profile. Finally, if you wish to decline authorship then you need to indicate that to Google by choosing the Private option in your Google+ profile or by removing profile links or markup from all required articles.
The above tips will ensure that you remain in tune with Google’s guidelines on authorship and attract increased traffic and attention from Google bots.