This is an incredibly quick read, but it gets right to the point in a great way. The information is presented as possibilities, which is great for getting new ideas to explore during temple worship. It is not authoritative in any way, but it was not meant to be, and based on the lack of citations in this book, authoritative sources probably do not exist. This was helpful to me and made me want to explore the subject further in a more complete text, if one exists.