This excels in many ways. The illustrations are vibrant and immersive. Both text and illustrations convey the warmth and welcome and sense of home and peace that the children in their mosque experience. It also conveys the diversity among Muslims (as the afterward notes, it is "a diverse and multiethnic religion"). I'm happy to see a picture book like this.
Now, as for the aspect of educating those unfamiliar with mosques and Islam in general, I do feel it falls short in a few ways. First, the mosque (mosques? I think it may be depicting more than one) in the book -- absolutely beautiful with a particular style of architecture and the back matter highlights "many famous and historic mosques throughout the world." At one point, a boy mentions looking up at the high dome in his mosque and feels at home. While there is nothing wrong with this, I couldn't help but feel it is a bit of an incomplete picture of places of worship for Muslims in America. I will speak here only from my (albeit limited) experiences having been close friends with a Muslim when I was in college but at that time there were no mosques (of the type that are depicted in this book, that is, a specially designed building specifically for the purpose) in our area. The place where my friend worshiped on Fridays was a place rented by the local Muslim community in a local strip mall. It was humble and certainly didn't resemble the place in this book on the outside, but it was their community and spiritual center in the area. Similarly, the Islamic center in the city where we live now is not a beautiful ornate mosque as pictured in this book but appears to be a building in typical commercial center. I believe these are still considered mosques? The ones I have seen are, on the sign, called "Muslim Center of [Town]" so I am not sure if there is a separate designation for "mosque" but it has been my understanding that a mosque is simply a public building where Muslims come together to worship and that is a purpose these buildings serve. In any case, if a key purpose for the book is to help Muslims in America be more understood and visible in the non-Muslim community, it would have been nice if the book addressed this since, at least in the areas I have lived, these more common as places for Muslims to come together and worship. If one was only looking for mosques (as depicted in this book) as sign of Muslim presence in the community, one might, unfortunately, miss it.
I also feel it is worth mentioning what an Amazon reviewer noted: "My only complaint is that I wish, since the book emphasizes people of all colors etc in the mosque, that it would have reflected someone Shia praying in one of the illustrations of namaz.
I’m Shia and we don’t clasp our hands when we pray (they hang by our sides)."
Finally, while the glossary was a welcome addition, I would have liked a pronunciation guide, as well. Again, this book seems to be written for those unfamiliar with Islam (the main point is to explain what happens in the mosque and to say that mosques are welcoming, the final line is "You are welcome in my mosque") since most of the target audience will be unfamiliar with Arabic, too. Of course, one could look up pronunciations online, but I always like it when it's part of the book.
So, overall, many strengths to this book and I do recommend it, with the caveat that perhaps one could google their local area mosques to show a more complete picture of the places Muslims worship in different parts of the world.