What is the author's style in Commodore Perry in the Land of the Shogun by Rhoda Blumberg?

Commodore Perry in the Land of the Shogun is a brief historical work that covers the events of Commodore Perry's interaction and negotiation with the Japanese. The language is straightforward. No hidden meaning is intended whatsoever. In fact, if anything, the language is intended for a young adult audience and so is explicitly committed to explaining the events in question in concise, clear prose. The book contains a number of pictures, much of which is Japanese art depicting the events described in the book. The language of the book, as a result, remains easy to comprehend and remember. That said, the text is far from boring. The author manages to tell an engaging narrative despite the short amount of space she has to tell her story. If anything, the language has a natural ebb and flow which interweaves subplots and tangential information with the main storyline quite well.