A hybrid text is a single text that uses design features such as marginalia, text boxes, and small embedded pictures to creatively weave together narrative and informative text. Such texts are popular among students who like the flexibility of having different types of text in one document. Examples of hybrid texts include comic books where each page is a panel with room for the reader to imagine the scene described in the narrative text portion above or below it; student essays where the margins provide space for notes on the text; and science fiction novels where part of the fun is figuring out what's going on in the narrative while reading about it in the scientific text. The term "hybrid" also refers to the creation of objects that contain various kinds of text that have been carefully woven together. For example, a cartoonist might draw a picture with dialogue bubbles for each character in it. Or a writer might use endnotes or footnotes to indicate details about the history of a word or phrase or to suggest other readings on which to base understanding. Both the picture and the narrative inside the bubble would be considered hybrids. In literary studies, the study of hybrids is called bifolio analysis.