which ambigram in this book you liked the most?

Hi! Ive read the book and I saw the ambigrams. I like them all but I particularly like the Fire one but my most favorite is the Illuminati ambigram too. Since Ive read the book, Im always fascinated by ambigrams and wonder how do they do it. Doing those words that cna flip back and be read is different from normal words that can be read the right way when flipped back like : swims, NooN, mow and others. But you cant read Illuminati as Illuminati when flipped upside down. I think it has to have an artistic point of view to see how they can read it the same way. Wish I was that artistic.