title: How to query through a JSON file in the MongoDB client without displaying a specific field?
body: <p>"Find all the books with more than 200 pages. Do not display the “Author” field." </p>
  
  <p>I know how to fine all books with more than 200 pages <strong>{"Type":"Book", "Page":{"$gt": 200}}</strong>, but I'm having trouble with eliminating the "Author" field in the results. Will anyone show me how this is done? Thanks</p>