What is the author's style in The Man Who Mistook His Wife for a Hat and Other Clinical Tales by Oliver Sacks?

The book is told from Oliver Sacks's perspective as clinician but he is also a humanitarian seeking to depict his patients as more than just case studies. Sacks tells the stories of his patients in an attempt to bring a human element to the world of neurological disorders. Instead of presenting a series of clinical case studies, Sacks endeavors to present the stories of people living and coping with unusual mental afflictions. The idea behind the presentation of the book is admirable and entices the reader, who is promised a series of stories that will both delight and inform him on a relatively obscure topic.