Gödel, Escher, Bach: An Eternal Golden Braid

Gödel, Escher, Bach: An Eternal Golden Braid is a book by Douglas Hofstadter. The book is about how ideas from the fields of mathematics, art, and music all connect together in interesting ways. For example, some of the ideas from math, like mathematics used in computers, are connected in interesting ways to some of the ideas from art, like Escher's complex drawings, and music, like Bach's counterpoint pieces. The book talks about how all these ideas link together in a "golden braid" and could be eternal, meaning that the ideas and connections could persist forever.