I am an engineer and like to solve problems. I also like Astronomy. Like I said in my first book, this is not a book about Astronomy though. There are many good books about beginning Astronomy and learning the night sky. This book is about common problems you may run into when starting Astronomy with an equatorial mount. It specifically addresses some items you may run into when setting up and using a Celestron CG-5 computerized German Equatorial Mount (GEM). Many items covered for the Celestron CG-5 also apply to other equatorial mounts as well. This is not intended to be a replacement for your manual. This book contains helpful information that will hopefully save you some time and frustration. The format of this book is simple. It contains a list of questions with a discussion of how to resolve the problem at hand.