It’s an issue of supply and demand.

As textbooks become more expensive, people are willing to buy less of them.

This has been a trend for years, with a number of publishers recently saying they will only produce textbooks that are 100 percent online.

But there is another problem: Many of the textbooks that consumers are purchasing aren’t exactly high quality.

The problem is compounded by a lack of textbooks in the market.

Some textbooks are made by people who specialize in certain areas, such as bio-tech or psychology.

These types of textbooks are expensive, but not nearly as expensive as textbooks that focus on the sciences, humanities, and social sciences.

There are two reasons why textbooks have become less and less affordable.

First, publishers have been trying to squeeze more money out of their customers.

Some publishers are even selling their own textbooks, and the students are getting the best prices.

In 2018, the publisher Kobo launched a textbook-making service called MOBI, or “medium of instruction.”

MOBI is an entirely new format that will allow students to customize their own materials for the entire school year.

Second, the industry is in a period of consolidation.

There’s a lot of consolidation going on in the publishing world, and this has pushed prices higher for students.

According to a 2017 report from the Education Trust, publishers are spending $14.4 billion on textbooks in 2018.

In contrast, a 2017 study from the Publishers Association found that the average price of a textbook had gone down by more than half.

But while textbook prices have gone up, so have the supply of textbooks.

A 2016 study by the Educational Technology Association found the number of online textbooks had dropped by 50 percent in the last decade.

In 2017, online textbooks accounted for a little over 5 percent of all textbook purchases.

A lot of this consolidation has been driven by the rise of the cloud.

Companies such as Amazon have used the cloud to build their own online classrooms, but there are also more traditional publishers that have been pushing online textbooks.

Some of the traditional publishers have also been investing in research and development, but they haven’t been able to keep up with the demand.

For example, Pearson recently launched an app called Pearson Online that allows teachers to create and customize textbooks for their students.

The app will allow teachers to customize textbooks, with students able to download them as they go.

But for some traditional publishers, they’ve had trouble selling the content.

In 2016, the Education Information Service said that textbook supply had grown by only 7 percent compared to the previous year.

It is unclear whether this will continue.

Another source of the problem is that textbooks are often printed on cheap paper, and that means that students aren’t buying the materials.

A 2017 report by the Association for Computing Machinery found that students bought textbooks for $2.51 for each book.

That’s not good for students, especially when they’re not getting the quality they want.

And if you are buying textbooks for a large class, it can become very expensive.

The number of students who buy textbooks for class projects is rising as well.

A 2015 study by The Information found that about 10 percent of students buy textbooks to help with their writing.

Some teachers also buy textbooks just to print out their own classroom materials, and to make extra copies of their own lessons.

But with these efforts, there is a limit to how many students can be taught at once.

According a 2016 report from Pew Research Center, about a quarter of all students in the United States take classes online.

Some studies have found that a large portion of these students have less than 50 percent of their classes online, making the use of textbooks difficult.