The document discusses the concept of sequence in literature. It explains that sequence refers to the order of events in a story, which may be explicit if the author uses words like first or next, or may jump around more. Readers can look for keywords like first or after to determine sequence. The document also provides an example story about two frogs who want to visit the city, but end up returning to their village after one frog mistakes their village for the city by looking in the wrong direction.