title: EventStore basics - what's the difference between Event Meta Data/MetaData and Event Data?
body: <p>I'm very much at the beginning of using / understanding <a href="https://geteventstore.com/" rel="nofollow">EventStore</a> or get-event-store as it may be known here.</p>
  
  <p>I've consumed the documentation regarding clients, projections and subscriptions and feel ready to start using on some internal projects.</p>
  
  <p>One thing I can't quite get past - is there a guide / set of recommendations to describe the difference between event metadata and data ? I'm aware of the notional differences; Event data is 'Core' to the domain, Meta data for describing, but it is becoming quite philisophical. </p>
  
  <p>I wonder if there are hard rules regarding implementation (querying etc). </p>
  
  <p>Any guidance at all gratefully received!</p>