This is a Great Gatsby word search. Basic word terms about the book include "West Egg" and "circus wagon" and "mansions" as well as many of the major characters.
This can be used as a review, for extra credit, as part of a test when students finish early, etc. I often like to use it with a corresponding activity, such as "Choose 10 of the terms and write a paragraph each." A lesson like that is very easy to differentiate and personalize.