We recently picked up books 4 and 5 in this series at a book fair. I'm sorry not to have started at the beginning, but the illustrations are just so charming that we couldn't say no. Part of me wishes the book began with even the slightest explanation of who the main character was - we don't even learn his name until a third of the way through - but on the other hand, I appreciate that the book isn't bogged down with series formula. One of my favorite aspects is Bo's friend Scrapper, who is drawn with three legs, a characteristic that's not mentioned at all in the text. Our students can't get enough of dog-centric lit, so I'm sure this series will be a hit with our beginning readers.