Parts one and two of OOP the Easy Way are now both complete. Part three will be underway soon, in the meantime you are welcome two read the first two parts on Leanpub (and will automatically be entitled to updates as soon as they are published, for free, for the lifetime of the project). All feedback is always welcome.
APPropriate Behaviour
The book about all the things software writers do that aren't writing software.
FSF
