While I consider this book one of the cornerstones of BMET education, a comprehensive update is very overdue. In addition to this edition, I also posess the first edition of the Brown and Carr book, and while that edition is considerably smaller, most of the information, figures, and photographs are reproduced in the fourth edition.
Granted, much of the information is still valid, but it does not truly represent the state of the field today. Their cause would be helped if they showed more accurate representations of what constitutes standard equipment of today. Additionally the authors spend a valuable amount of time explaining the theories behind measurement methods and electronic theories, the technology described is invariably that of the 1970s with little time or attention spent on what is in use now.
An aspiring Biomedical Equipment Technician should read this book, but should bear in mind that it will only go so far in preparing them for the modern day BMET field. I would love to see Brown and Carr throw out all of the figures and photographs for the fifth edition, just to make them actually re-visit the state-of-the-art.