If you're looking for a delightful book on the subject of infinity, check out Beyond Infinity by Eugenia Cheng. She covers the infinite hotel problem mentioned

If you're looking for a delightful book on the subject of infinity, check out Beyond Infinity by Eugenia Cheng. She covers the infinite hotel problem mentioned in another comment, plus all the topics listed here: https://en.m.wikipedia.org/wiki/Beyond_Infinity_(mathematics_book) https://en.m.wikipedia.org/wiki/Beyond_Infinity_(mathematics... Very fun read.