I know it was 1978, but is this the best we could do? It's one of those books for kids that talks down to them a bit and makes some weird, intriguing statements only to leave everybody hanging. Altman also decided pirateer was a word.
The addition of pictures to color, in case mildly inaccurate factoids about sharks don't keep little Timmy occupied, is nice. And don't let the Universal Studios branding fool you: this has nothing to do with Jaws 2.