The other day, I talked about building an e-book for Kindle and Nook. Today, I want to add a few things to the Makefile we created so that we can produce a PDF. The end result will be that every time you want to create a PDF of the book, you will only need to type 'make pdf'.
If you're one a Mac, you'll want to install MacTeX. If you're on Linux/UNIX, you'll want to install the package that contains pdflatex. We'll be using LaTeX to typeset our book.