One theme of Crash is what you see is what you get. In the story, Jules sees visions of a crash that she knows is going to happen because as the time of the crash get closer, she sees the vision more frequently and its always the same one. She knows she needs to figure out what she needs to do in order to save the nine people in the body bags and most importantly, to save sawyer. She can see his dead face in her vision and she wants to change that. Another theme of this book is do to others as you would want them to do to you. In the story, between Jules, Rowan, and Trey they are really close. they do favors for each other when they are working, when there at school and when there at home. They stick up for each other and do things for one another. When each of them do something for each other, they always do something in return for the favor they received.