How to Speak Dragonese by Cressida Cowell

This book is targeted at a slightly younger age group than most of the books I read. It is similar in tenor to the Time Warp Trio books by Jon Scieszka - a goofy, light-hearted take on something that almost resembles history. Only this series - of which this is, I think, the third book - is more fantasy than history, complete with miniature dragons and nanodragons and regular sized dragons. But it also has Romans and Vikings. It is a cute romp, but cuteness gets annoying after a while.