Blending genre, altering style by Romano is a book that outlines, explains, and provides strategies for the multigenre paper. Romano shares student examples of multigenre writing, and he shares short assignments that students could try and include in their multigenre papers.
A weakness is that he doesn't give the reader much concrete information when it comes to assessment. There is a chapter at the end about assessment, but it wasn't that helpful. Especially when a teacher works in a tradition researcher-paper oriented school, it would be helpful to describe more about assessment or a firm rationale for why multigenre is better than a traditional research paper.
He doesn't talk much about his transition from traditional papers to multigenre papers, although that might be something he addresses in Writing with Passion. A good book to pair with multigenre writing would be The Collected Works of Billy the Kid and Karen Hesse's Witness.