Even multitasking 21st Century students still have to cram for literature tests, and Wiley Publishing, Inc. built them a CliffsNotes iPhone app for this digital age.

The company released five individual apps in the first wave of smartphone study aids--including guides for "The Adventures of Huckleberry Finn" by Mark Twain and "To Kill a Mockingbird" by Harper Lee--the series will eventually include 40 titles. The app provides summaries of plot and thematic elements, character relationship maps, quizzes to test your comprehension, and "audio CramCasts" about the books.

Here's more from the release: "Modality's content architects created two distinct review modes to allow for a more customizable study experience. A prescriptive 'Cram Plan,' created by the experts at CliffsNotes, orders the content of the app to maximize even small increments of study time. A more traditional e-reader interface presents the app's complete content in a fashion similar to that of the printed literature notes."