This book has a lot of useful information about the ins and outs of Revit MEP 2012. If you are somewhat familiar with Revit MEP and are looking for an additional resource for improving your understanding, this book can get you there. Though, I would not call this an "advanced" topic training guide.
While there are tutorials scattered throughout the book, they don't appear to build off each other. And not every topic has an associated tutorial. Therefore, if you are looking for a resource for training other people, this isn't it. Instead, I highly recommend
The Aubin Academy Master Series: Revit MEP 2012
by Paul Aubin which is setup as a continuous flow tutorial.