The efforts of Student Congress' Select Committee on Textbook Pricing spurred 80 percent of all professors to submit the request forms by the Dec. 1 deadline, said Kelly Hanner, processing assistant in the textbook department of Student Stores.
Jennifer Orr, chairwoman of the committee, said 65 percent of all professors requested textbooks by the deadline last year.
"(The committee's) personal goal was 75 percent," she said. "We met and surpassed our goal, so we're very excited."
The increased number of professors who submitted the request forms on or before the deadline has allowed Student Stores to order more textbooks for next semester at an early date, Hanner said.
Student Stores first tries to buy used textbooks from wholesalers, but there is only a limited number available, she said.
Because more professors submitted early their textbook requests for next semester, Student Stores has been able to buy more used books.
It can sell these books to students at a lower price than new books, Orr said.
She also said more students will be able to sell used textbooks to Student Stores when the buy-back period begins Saturday because officials are more certain of which textbooks they can resell next semester.
"The prices of the (individual) books won't change, but Student Stores will be buying more used books," Orr said.