No ETX should be without it,
Verified Purchase(What is this?)
This review is from: Using the Meade ETX: 100 Objects You Can Really See with the Mighty ETX (The Patrick Moore Practical Astronomy Series) (Paperback)
If you have bought on of Meade's excellent ETX telescope's you should also buy this book. For two reasons: Mike Weasner is an accomplished user and you will probably get the most out of your investment this way, but also because his enthousiasm is contagious.