From the cover with its glow in the dark stickers i was a little put off, but that all changed when I opened the book and started reading. What I really like about this book, and others coming from this publisher, is that while it is an animal book, the author picks a topic and shows the reader how it differs in different animals. In this case its bio-luminescence and light. Lots of amazing animals are covered. The information included is everything from size comparisons, location on earth rangers, and interesting factoids. Well done, and well worth the read.