This is a very well written and nicely paced account of Schumann's life that draws heavily on his and Clara Schumann's diaries. Schumann's private personality emerges very nicely, and goes a long way towards dispelling the myths that were created by a tradition of biography in which the observations of those that did not know Schumann well took center stage and exaggerated the pathological elements of his personality and his eccentricities. Schumann was of course still a very unusual and unique man, but this is revealed in the context of the arc his entire life and in the context of his relationship with Clara.
This book is also a very good choice for those that are uncomfortable with the technical language of music and music notation. Schumann's music is not dealt with in these terms, but rather in the context of his life and musical development. This treatment is thorough enough, however, that those who are more familiar with music will gain much in reading it.
One quibble I have with the book is that I find Worthen's concept of manic-depressive disorder (bipolar I) very narrow, if not outright wrong at times. For example, he mentions times in which Schumann was particularly agitated and hyper-sensitive for periods of weeks or months. In doing so, he stresses that Schumann is not depressed since he is not showing the classic signs of depression that would characterize the depressive state of manic-depressive disorder, and that he was still able to work effectively through these periods. As someone who is familiar with this subject, my own thoughts are that these periods sound in fact, VERY much like dysphoric MANIC states or mixed states, which are often seen in patients with bipolar disorder and often misinterpreted by non-specialists. With this in mind, I very much doubt that this book has disproved the myth that Schumann had bipolar disorder, and in fact may make the case stronger, though I recognize the almost undeniable role that tertiary syphilis played in Schumann's final years. Worthern is very thorough in this respect, and gives very strong medical evidence to support this.