Audiobook
recording of a text being read
Do Youtube viewers get unsolicited audiobook advice often?
Audible is one of the most common sponsors for Youtubers to have. Audible is an audiobook subscription service.  Audible ads typically involve discussing a book that the speaker has recently listened to.
What company is one of the most common sponsors for Youtubers to have? What do the ads for #1 typically involve? Does #2 involve someone giving audiobook advice?