You can add small blocks of ‘schema’ code to your website content, which will tell Google what your website content is about.
For example, if you have a business address, then you can use codes to identify the ‘street’, ‘city’ and ‘postal code’.
This helps search engines scan and understand your website content quicker.
For local SEO, schema can be used to identify different types of local content, including company and address, reviews, products, authors and offers.
Learn more about schema from The Ultimate Guide to Local Schema, which was written by the guys at Synup.