"One thing must be made clear from the start: this is a work of fiction". So reads the opening line, and it is the most (perhaps only) accurate statement in the book.
The text in this book is for the greater part, fantasy, and only very loosely based on science. This would not be an issue were this book not stocked alongside actual science volumes (it most surely belongs in the science-fiction section). Credence is given to text-author Henry Gee for having written 'in search of deep time' a popular-science book in which he vehemently argues against the reconstruction of animal behaviour from fossils. Quite why he is writing this text then, one can only wonder at.
This is contrasted by Luis Rey's striking artwork: characteristically vivid both in colour and in depiction of dinosaur behaviour. Personally I prefer his black and whites, but the pictures are certainly packed into this slim volume. Shame the book wasn't restricted to pictures only.
If you buy this book for someone, do it for the artwork. It isn't clear who the text is intended for, because it is far too complicated for children, and much too ridiculous for any normal adult.