First, we see what appears to be several ISBN numbers and prices. Because this was at the beginning of the semester, we shall assume the owner of this schedulebook was in the process of purchasing her textbooks. Since two are scratched out, we shall assume that she has either already purchased these books, or already dropped out of the classes for which she needed them.
Upon investigating the ISBN's listed, the first textbook turned out to be Contemporary Business, by Louis Boone and the third book was Music Business Handbook and Career Guide, by David Baskerville. This leads me to determine that the owner of this book is studying business and perhaps music.