Gregory J. Gbur is a professor of physics and optical science at the University of North Carolina at Charlotte. He is the author of two textbooks, Mathematical Methods for Optical Physics and Engineering (2011), and Singular Optics (2016), as well as two popular science books, Falling Felines and Fundamental Physics (2019) and Invisibility (2023). He is also the author of blogs on horror fiction, physics, and nature. He has written for, or been interviewed, in outlets including The Atlantic, The Washington Post, Physics World, Science News, and more. He lives in Charlotte, NC.