I'll be posting my weekly status report every wednesday evening (or maybe not). I've got chapters 1 to 3 done in rough draft form. If you have any comments, critiques, questions or suggestions, feel free to email me (please don't leave me a /msg, it's easier to collect emails). Chapters 2 and 3 have exercises, and Appendix A has solutions to the exercises. Let me know what you think about the "puzzles", and if chapter 2 should have some.