What it is
A knowledge graph stores information as entities and the relationships between them. Instead of a keyword, it holds a thing: a company, a person, a product, with attributes and links to other things. Google's Knowledge Graph is the best-known example, the source of the information panels you see beside search results. The point is to model meaning, so a system knows that a name refers to a specific entity and what is true about it.
Why it matters
Knowledge graphs are how the search engines and AI systems audiences move from words to understanding. When a model knows your brand is a distinct entity with clear attributes, it can represent you accurately and cite you with confidence. When it does not, it guesses, conflates you with something else, or leaves you out. Becoming a recognized entity is the foundation that AEO and GEO build on.
What to do
Help machines resolve your brand to an entity. Add organization and person schema, keep your name, role, and core facts consistent everywhere they appear, and earn mentions on sources the graph already trusts. This work is the heart of entity SEO. Run WAIO Engine to check whether your site gives machines what they need to identify you.