First time readers may be disappointed that all this book contains is just black and white pictures of the various Transformers, locales, weapons, and miscellaneous from the early years of the franchise's cartoons. HOWEVER, what readers have to take into account is that what this book contains are animation models that aren't seen often outside of animation or broadcasting studios, short of certain types of magazines. ESPECIALLY the fact that the other half of the book contains animation models from the Japanese-exclusive Transformers series such as "The Headmasters", "Masterforce", "Victory", and "Zone". Why such importance? It's extremely useful as reference material, whether it be for those looking into the animation industry, graphics, comic artists/writers, and even writers that focus on words only! Another factor is the condition on some of the models, sometimes those from 1984 where depending on how it was store, could take hours to clean up so it can be presentable. English-speaking fans were less likely to see such material, even today, whereas Japanese fans were luckier as they have several magazines and various artbooks to showcase the models.
If you already have "The Ark" and "The Ark II" that came out prior to this, it's a good idea to pick up the Complete Ark as it has additional pages that weren't in either volumes. If you haven't picked up the first two volumes, then it's still highly recommended to pick this up.
What Jim and Bill did here is a something of treat for Transformers fans, because Transformers isn't just about the toys - it's also about the characters and how each new generation changes over the years. You don't see this type of transforming history often in the West.