By today's standards, the book is painfully obsolete, as it continues with the old routine of sauropods and lambeosaurs being forced to be aquatic, but I've been a huge fan of Rudolph Zallinger (http://www.yale.edu/peabody/archives/ypmbios/zallinger.html) since I had my first copy of that book in '72. As much as I love contemporary palaeo artists such as John Sibbick, Zallinger's work after his Age of Reptiles mural still qualifies as the best at expressing, without actually showing human figures, exactly how big some of them could become.