Just read his Marune: Alastor 933 book last month and it was pretty good.
Recently finished Roadmarks by Roger Zelazny, which was pretty cool though somewhat confusing. The story is extremely nonlinear due to the nature of the book, and is split into two different chapters throughout the book(It switches from 1 to 2 then to 2 then to 1 again, in seemingly random order). According to the wiki, "Roger Zelazny figured out the order of the "Two" by stapling the pages of each chapter two together, then throwing them all in the air and the order he picked them up was the order he printed them. He said he was fairly pleased by the result."