I am surprised at how thorough and precise is the information contained in this book. It is a valuable resource that I'm still trying to figure out how I did without. Very clear, concise, and objective. I highly recommend.
I got this book to provide me a quick reference to the differing Christian groups I deal with when it comes to conversion to the Roman Catholic Church. It gives me enough information regarding the theological pedigree of a particular group to indicate the correct path I must take didactically, catechetically and sacramentally with those wishing to enter the Roman Catholic Church.
An awesome reference. I sit around sometimes and just read bits and pieces throughout just because it's so interesting. Simply put, this book is exactly what it says it is. It has all of the information about relevant US Christian denominations you'd expect and/or hope for. I wouldn't fool around with any other resources unless you're planning to do some heavy-duty searching and spending.