I personally know the authors through my participation on the Council on Nursing Informatics within the North Carolina Nurses Association. These women are at the top of their field. They are a wealth of information and have provided the rest of us informatics grunts with a great guide to help us along in our goal towards a national EHR.
I would recommend this text to anyone interested in informatics...or to anyone who is contemplating the purchase and installation of a electronic health record. Implementation can be a daunting task, but these ladies have broken a complex process into managable "bites" for anyone to accomplish.