A discussion on recommended undergraduate-level optics books highlights the need for clear and well-written resources for students in upper-division courses, particularly in astrophysics. Participants suggest several titles, including "Modern Optics" by Guenther, Fowles' classic, and Hecht's Schaum's outline, noting that while Hecht's work is informative, it can be overly verbose for course needs. The conversation also touches on "Principles of Optics" by Born & Wolf, which is often considered more suitable for graduate studies, and "Lectures on Theoretical Physics, vol. 4" by Sommerfeld, praised for its enduring quality despite being older. The importance of selecting the right textbook to support learning in complex topics like optics is emphasized throughout the discussion.