Open access textbooks are becoming increasingly popular, with many universities now requiring that their students have access to open textbooks. There are a few different types of open textbooks, including those that are free to use, and those that are available for a fee. Open textbooks can be helpful for students who want to study without having to pay for books, and they can also be useful for teachers who want to create materials that are accessible to all students.
There are, however, some concerns about whether this trend is sustainable. Some believe that open access textbooks are fads that will eventually go away, while others some professors worry that the trend will not pay off for students.