It’s about books in audio format. Students with some form of reading impairment due to, for example, dyslexia, ADHD or visual impairment, have the right to borrow course literature in audio format.
The student does not have to provide a medical certificate but must make it plausible that they has a reading impairment.
The library can help the student with opening accounts that are needed, etc. (Library > Study support > Services for students with disabilities > The Library’s service to students with reading disabilities).
If a course book does not already exist in talking book format, the library can help you order it to be produced. But it takes at least 6-8 weeks to produce a new talking book, so it is important to be observant and order well in advance of the course start.