In 2003 Jacek Artymiak published in a book called Building Firewalls with OpenBSD and PF -- one of the earliest physical publications about using PF. This was sold on the OpenBSD website and many enjoyed having that early hard copy reference.
However for much of the past 7 years since then, Jacek has been promising a book called OpenBSD Command Line Companion. The problem is that he keeps saying (or at least letting people think) it is finished, and then takes orders and payments on his website: www.devguide.net, either for a PDF or a hardcopy of it. Something similar has happened for a purported 2nd revision of Firewalls. We also have attempted to purchase these books for resale and have nothing to show for our $2,500 pre-payment for 100 books. Meanwhile, I have asked Jacek not to use my name or the Computer Shop when promoting his book, however he continues to do so. Unless this situation is ever resolved, please do not be misled by these references. Austin Hook Computer Shop of Calgary LTD OpenBSD central distribution Milk River, Alberta, Canada