Obejct-Oriented Programming the Easy Way gets ever closer, as the first part (of three) is now substantively complete. If you have been holding off from buying the book, now would be a great opportunity to jump in, as a whole part of the book’s argument is now laid out. As ever, your feedback is welcome, and readers who buy now will get free updates throughout the development of the book.
APPropriate Behaviour
The book about all the things software writers do that aren't writing software.
FSF
