Please note, these are best practices that are suggested by current literature and serve as guidelines to help create guides that will be the best use to patrons. Use your best judgment when it comes to the creation of your guide - not all of these best practices will always be the best fit for the subject/topic.
Conrad, S., & Stevens, C.S. (2019). "Am I on the library website?": A LibGuides usability study. Information Technologies and Libraries, 38(3), 49-81. https://doi.org/10.6017/ital.v38i3.10977
Sonsteby, A., & DeJonge, J. (2013). Usability testing, user-centered design, and LibGuides subject guides: A case study. Journal of Web Librarianship, 7(1), 83-94. https://doi.org/10.1080/19322909.2013.747366
Thorngate, S., & Hoden, A. (2017). Exploratory usability testing of user interface options in LibGuides 2.0 College & Research Libraries, 78(6), 844-861. https://doi.org/10.5860/crl.78.6.844