In episode 2 of the Knowledge Panel we discuss:

What schema is important for SEO?

What types of schema make a positive impact on featured snippets?

Google Guidelines say:

“You must follow these guidelines for your app to be eligible to appear as a rich result. Warning: If your site violates one or more of these guidelines, then Google may take manual action against it. Once you have remedied the problem, you can submit your site for reconsideration.”

--- Why do they feel the need to have these guidelines?

Article Schema requires images… what happens if you don’t use any in your schema?