What does P211.T45 mean? Honestly it took me awhile to figure out it was a book you had to go to the library to get. All it is though, is just a book full of signatures. Pen to paper. But something about P211.T45 makes you want to examine every page for some fascinating secret, as if the book contains the meaning of life. Sadly it does not. For starters P211.T45 is a book co-written by anyone. Although I assume most of the signatures come from students in English classes just like mine, it still is a great analogy. That analogy is that it does not matter who you are or where you come from, we are bigger than that. Books represent knowledge and even though it is just a book full of students signatures the knowledge behind it is so much more.