# E-E-A-T Schema Markup: The JSON-LD That Makes Google Understand Your Brand (Part 3 of 5) How to implement Person, Organization, Book, and BookSeries schema.org markup with sameAs, knowsAbout, and entity cross-references. The exact JSON-LD blocks that feed Google's Knowledge Graph. Author: J.A. Watte Published: August 25, 2026 Source: https://jwatte.com/blog/blog-eeat-schema-structured-data/ --- This is Part 3 of the [E-E-A-T Authority series](/blog/blog-eeat-authority-foundations/). In [Part 2](/blog/blog-eeat-google-wikidata-profiles/), we created profiles on seven platforms. Now we connect them through structured data. Schema markup is how you translate your E-E-A-T signals into a language Google can machine-read. Without it, Google has to guess at entity relationships by crawling your HTML. With it, you are stating those relationships explicitly. I use JSON-LD (JavaScript Object Notation for Linked Data) embedded in `