Hello, the e-book uses xtick
www.xtick.com which gives a demo period on the gbpusd & a few other currencies.... the e-book revolves around using renko charts and xtick is the one mentioned in the book....I have subscribed on a monthly fee to access their total currencies...
They are totally different to most charts, I would suggest you email Mark at his website address I am sure he can give you more information. If I can be of further help.. please ask...