There is a contact form. But if you prefer to email please use asmc@ashridge.org.uk. You can also call +44-7855 287 648.
If you want a copy of the book, Van Haren Publishing has three shops
UK http://www.vanharen.co.uk/shop/978940180071c-operating-model-canvas/
US http://www.vanharen.us/shop/978940180071c-operating-model-canvas/
Europe http://www.vanharen.net/shop/978940180071c-operating-model-canvas/
Operating Model Canvas 