Growing up, I'd of course knew of Our Lady of Guadalupe, but I'm not sure that I've ever really read the story start to finish. Perhaps as a child, but I haven't really done a lot of reading on the subject or its meaning since. This book may not have been the best start in that sense, as it doesn't tell the full story in sequence until Appendix A (Note to Past Self: You should have started here.), but what it does do is interpret the story really well.
From the elements of the actual image of Our Lady of Guadalupe to the words she used with St. Juan Diego, this book examines each part of the encounter. On top of that, it goes into interpreting its relevance. It starts with its relevance to the Catholics of the time, as well as the Spanish colonists, but where I found it most fascinating was where it connected the elements of the image and the encounter with the Native American culture of the area at the time. It also continues on to outline how the event is relevant today. While, for the most part, it doesn't point to specific incidents or situations, it explains meanings and effects in ways that I could easily connect to things in life and the world. There were a number of ideas that I didn't even think to look for in this book that were addressed.
While this book isn't inaccessible, I do think its more written for someone who is familiar with the faith. It was also a bit repetitive sometimes, and occasionally I had a hard time keeping my attention on it. That being said, I am really glad I read it and I got a lot out of it. I love it when readings on faith are really relevant to where I am in life, and this was one of those cases.