LinkedIn is a professional networking site that allows users to connect with other professionals in their field. The site allows members to create a profile, connect with other members, and find business opportunities. LinkedIn can be used to find jobs, networking opportunities, and to research companies and industries. LinkedIn also offers users the ability to endorse others for skills, which can be helpful in finding a job or networking. 

Instructions in detail:

1. Click on See contact info from your profile.

2. To edit, click the pencil.

3. Click the arrow next to the URL of your LinkedIn profile.

4. Scroll down and click the Create Public Profile Badge button.

5. Step one is to copy the code from step one and paste it in the text area of a WordPress page or post or in a message to send to your web developer, then enter (return) to a new line.

6. Scroll down, select a badge, copy the code, and paste it below the first line of code before publishing or sending to your developer to be added to your website.

Done!

Benefit

The benefits of having a LinkedIn button on your website are twofold. First, it allows your visitors to easily connect with you on LinkedIn, which can help to build your professional network. Second, it helps to promote your company on LinkedIn, which can increase your visibility and reach among potential customers and clients.