In the past several decades, scores of books about mentoring and librarianship have been published. There are academic articles, webinars, and workshops that librarians can use to learn more about why mentoring is important and how to be a good mentor. However, in my own experience, most of these resources explore mentoring from the perspective of the mentor, not the mentee.
Goodsett, Mandi, "A Short Guide to Being Mentored: Tips for Strong Relationships" (2019). Michael Schwartz Library Publications. 157.
Goodsett, M. (2019). A Short Guide to Being Mentored: Tips for Strong Relationships. College & Research Libraries News, 80(1). https://crln.acrl.org/index.php/crlnews/article/view/24198/32009