What is interesting to me about this book is that, to me, it can exist in the fictional Wizard World and essays in our own world. These are essays written by JK Rowling to give us some information about the country's history to connect and prepare us for the films. This is where it gets a bit of a blur in the context of fictional and reality.The films can be seen as "Documents" as this is how Newt refers to them (Fantastic Beasts and Where to Find Them (2017 version) and that more animals would be revealed the more these documents are publicly shown.
The fact the films are documents with the essays to prepare us for them, I think that "Magic in North America" is in fact a book that exists in the fictional world. JK herself said that she does exist in some manor in her world as well and, I think, she wrote the in-universe take on the Harry Potter books we read (which would also be authored by Rita Skeeter). With this furthermore showing JK Rowling (as a character) wrote a book called Magic in North America and we got simply excerpts from it.
"The History of" is simply the narrative's documentation view on the book like "Get ready to know the history of magic in North America" and simply that.
So in some ways it is, presumably a textbook as well in Ilvermorny.