What is the author's style in The Broken Cord by Michael Dorris?

The book is written in first person from the perspective of the author, Michael Dorris, who adopts three Indian children, including one with Fetal Alcohol Syndrome. The person who expects this to be a book only about Michael's adoption of Adam and their lives together will be disappointed. In reality, Michael spends a great deal more time focusing on the condition, Fetal Alcohol Syndome, its causes and effects on children, families and society as a whole.