Bach -> Gödel, Escher, Bach
My army book. A class mate was studying already while I was drafted. She gave me the book and I was reading it a lot at readiness weakends. I have the book in three languages. The english one has a lot of word plays and Hofstadter wrote that he had a lot of work with the translators to keep them intact as much as possible.
Gödel: mathematician
Escher: painter
Bach: composer
and all woven together by an endless braid