Does schema markup help SEO? What it can and cannot do

Schema markup is not a direct ranking factor, but it can make pages eligible for rich results and clarify entities. Here is what to expect.
The sameAs property explained: link your entity profiles

The sameAs property tells search engines which other pages on the web describe the same entity. Learn what to list, what to avoid and how to use it.
What is schema markup and why it matters

Schema markup is code that describes your pages to search engines in a standard vocabulary. Learn what it does, what it does not do and how to start.