Have you seen that some of the search results have a profile picture  next to them? The picture which you see in search results adjacent to  the content comes from the author’s Google+ profile. By seeing your name  and picture next to the blog post, readers know that the article has  been written by you. The photo is much like a sanction of approval from  Google and it shows that you’ve verified your authorship on Google. 
Bloggers around the world have started using this to gain popularity  and authority on Google. This is a nice move by Google due to which lot  of content developers and bloggers have started using 
Google plus. Before we see how to get your Google+ profile image in search results, let’s see why Google authorship is so important. 
Why To Use Google Authorship?
Better Click-Rates: Your photo will be displayed in  the search results corresponding to your article. Hence your site can  have higher CTR(Click Through Rate), as readers think that the article  is more reliable. 
Improves your online presence: Google Authorship  confirms you as an expertise in your relevant field and therefore  increases the traffic to your other blog posts. 
Increases your followers on Google+: When the  readers find your article to be helpful, they will probably click on  your photo to know more about you and may add you to their Google+  circles.
 There are several ways to get your name and picture displayed on  search results next to your content but it can get a bit difficult if  you have multiple authors writing content for your blog. For eg. As of  now we have two permanent authors for this blog. One is myself Amit  Nishad and other is Harshad Ghodke. This means that Google should  display my picture in front of posts written by me and Harshad’s picture  in front of posts written by Harshad. Like we said there are several  ways to achieve this, the easiest way to do this is by having the right  information in your WordPress user profile. Now, let’s see how do we  implement Google Plus authorship on our blog. 
How To add Google+ Authorship to your blog?
In order to add the authorship to your site, you first need to  connect to your Google+ account and ensure that all the details have  been filled out. 
Steps to link your Google+ account to your blog: 1. Click on “About” menu
 2. Scroll down to find “Contributor to” & click on “Add custom link”
 3. Enter the URL & name of your blog
 Next step, you need to add your Google Plus link to your WordPress blog.
 1. Login to the admin panel of your WordPress blog
 2. Click on “All Users” under “Users” menu
 3. Select the user and click on “Edit” link
 4. Add your Google+ profile URL in the text box corresponding to “Google+” field. Below
 Please note that you need to do this for all authors/users on your WordPress blog.
 You can test whether your picture is being displayed by going to the 
Google rich snippets testing tool. Here is a screenshot of how articles on this blog look like on Google search.  
 Your search results along with the picture might not be shown  immediately on Google search. Google will take some time and hopefully  your authorship will be displayed when Google indexes your website or  blog again.