The "Twilight" star wants to study English literature through correspondent course so that she can fulfill her work commitment.
"Yes, Kristen's a Tinseltown actress worth millions, but she is already considering a life after film. She never got to complete college and she wants to get a proper education. She is a voracious reader and cannot wait to get going on her correspondence course," mirror.co.uk quoted a source as saying.
"It won't be easy and it will mean putting in some fairly strenuous hours. But once she's graduated, Kristen will be able to do almost anything she wants, in or out of Hollywood," the source added.
Stewart follows fellow actresses Emma Watson and Dakota Fanning who continue to broaden their knowledge despite their heavy workload.