This is one of two shorts recently released that are based on the "How to Train Your Dragon" characters. Of the two, "Book of Dragons" is by far my least favorite--mostly because it isn't all that much fun.
The film begins with a quick recap of the original full-length film. Then it purports to be an educational video--instructing the viewer on what it is to become a dragon trainer. It's interesting how the characters appear to talk to the viewer--as if you are applying for one of these jobs. Much of the instruction is on the history of dragon identification and these portions are done with what appears to be traditional hand-drawn animation. Some of this is rather cute but too much appears to like a very dry lecture. An interesting idea but one that gets old rather quickly.
