Reddit reviews Making the Scene: A History of Stage Design and Technology in Europe and the United States

Scene Design and Stage Lighting is an often-used text-book from what I can tell. I have an old version myself, but can't attest to the current version. Design and Drawing for the Theatre is also an old standby (and denser), though it appears it's out of print.

If you want something lighter and less expensive, perhaps Fundamentals of Theatrical Design or An Introduction to Theatre Design, though they aren't limited to just scenery. I haven't read the former, but the I've taught from the latter in an intro to design course. It's rather light, but that can be good for a first book.

You can also go the more theoretical route, and pick up the classic Dramatic Imagination by Robert Edmund Jones. What is Scenography? and Scenographic Imagination are chock-full of great theoretical discussion for the long term, but not suited for your first dip into the pool. Might be worth bookmarking for down the road, though.

And sometimes it's good to just have a survey of other's work. American Set Design isn't a bad place to start for that. I recently picked up World Scenography, and while I haven't had the chance to sit down extensively with it, it's a gorgeous book.

This is of course just going from scene design, there's also options out there about the history of design, useful technical handbooks for the craft, or even more specific things like model-making.

If you're already generally familiar with theater and roughly understand the production process, maybe grab one of the two in the first paragraph. If you're coming in completely fresh, starting with one of the cheaper super-introductory books in the second paragraph might be better to ease in. If you have the funds, I'd suggest one from each paragraph. Perhaps others in this sub have more specific choices they feel are definitively superior than other options.

Also, I'm guessing your university may not have a design professor, but you might suggest an independent study in scene design as a course. Hope this helps!

I quite enjoy Making the Scene. It's just a general history of the craft, but it's a gorgeous book and exceedingly well thought out.