This Christmas, there is a special deal for Mastering ArchiMate. From today until New Years Day, you can buy Mastering ArchiMate Edition II with a discount and at the same time support the development of the free open source Archi modelling tool
The PDF discount is €5. The hardcover discount is €10 (this is a bit complicated as the price depends on your location, but you can trust me it will be a good offer that you get when you enter your details). A purchase of either version of the book via the Archi web site also results in a €5 donation to the good cause (Archi).