If the OP hasn't read Structure and Interpretation of Computer Programs yet, that would be a great one. It takes you all the way from adding numbers together to

If the OP hasn't read Structure and Interpretation of Computer Programs yet, that would be a great one. It takes you all the way from adding numbers together to writing a compiler for a virtual machine. There's a reason it's a classic. Also, it's online: http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-4.html http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-4.html