Keeping in line with recent trends over the last couple of years, spending on course materials such as textbooks decreased 14 percent in the last year, an annual survey of students finds. A separate study of internal prices of one textbook retailer found that prices had decreased 26 percent in the last year. According to the survey of more than 20,000 students across 41 institutions conducted by the National Association of College Stores, students on average spent $415 on course materials in the 2018-19 academic year, down from $484 last year. Student spending has declined almost every year in the last decade -- in 2008 students spent an average of $700 on course materials.