Help on valuing books

[Buckums]

I came across these books a friend of a friend is selling. Amwell Press' Big Five Series. I am very early in my book collecting interest and I don’t know how to value or their appreciation potential. Any help would be greatly appreciated.

 

[Wade J VanGinkel]

I'm not a book guy but Google lens says that's a 2k set. Even more if it's the signed editions

 

[Buckums]

I didn’t know google lens was a thing. Interesting. I don’t think I am quite ready to drop $2k on books. Dang taxidermy gets expensive!