This is an excellent 48 page non-fiction book about the history of the Erie Canal.  Explained in context with the political events of the time and in particular the development of the United States as a nation, this book is well-written and interesting.  The format is also impressive.  Rather than a glossary, key words are defined in the margins on the page on which they appear.  So much more reader-friendly, it ensures that the reader takes the time to fully comprehend the text.  Photographs, primary source paintings, maps and diagrams are plentiful throughout the book.  There is an AR test (level 5.7, 1 point).  I was engaged throughout this book and believe that students will enjoy reading about the history of the Erie Canal.