Madeleine L'Engle's creative novels, especially the prize-winning ever-popular A Wrinkle in Time, have introduced generations of readers to the concept of higher dimensions and the objects like the Tesseract that can be found there. When Meg wants to locate her Father, she has to be open to new ideas that change her conceptions of space and time. Her journeys take her, momentarily, to a two-dimensional planet, and lead her to explore a space of four-dimensions with time as a fifth dimension. Many young women and men have been inspired to learn more about mathematics as a result of this imaginative introduction to the full range of dimensions.
For many readers, "A Wrinkle in Time" provides the first introduction to the Tesseract, a mysterious concept that somehow leads to higher dimensions.
To read more about Madeleine L'Engle and her ideas, there are many links to follow, for example here and here. Other web resources are here and here .
To see an imaginative collection of materials on Madeleine L'Engle and the Fourth Dimension, including teachers' guides for units on higher dimensions in middle school, see the final project of a group of Yale students at this location.