My six year old refused to allow me to read this to him (I think he's outgrowing trucks anyway), so you'll have to settle for my review. I found it charming; anyone who has ever wanted a backhoe of their very own (or any truck-loving dog-wanter) will sympathize with Nolan, who brings home a stray backhoe he finds wandering loose in the road. However, backhoes are hard to keep in the house-- this one digs up flowerbeds, dumps dirt inappropriately, etc. And it becomes obvious that the backhoe, who Nolan names "Joe," is pining for those he ran away from. Eventually, Joe and Nolan stumble on the construction site he came from, and Nolan bids Joe a fond goodbye. Nolan's parents are ready, having watched him care for Joe, to consider a pet for him... but the one he brings home at the end of the book is perhaps not the best choice!
Should be a hit with Truck fans from, say, 3 to 5, fans of DinoTrucks, and those with a predeliction for stories about adopting dinosaurs (such as The Day Dinosaurs came with Everything.