The book explains a condition called anosognosia which brain injured individuals may experience. As the title explains, anosognosia basically describes an unawareness of deficits. Although much has been written about brain injuries, this extremely important facet of the recovery process is rarely addressed. I am brain injured myself and learned more about my own condition from this book than I have learned in all the other seventeen post-morbid years put together. It is written in highly technical language, more for professionals, I'd guess, than the lay person. All the same, I (a lay person) found it great reading and had no trouble understanding its content.