What is the author's style in Necessary Losses by Judith Viorst?

Judith Viorst's non-fiction book is written from her own perspective, and she incorporates hundreds of quotations from poets, authors, philosophers, scientists and others to support her ideas. She has managed to take a step back and look at life as a whole, and dissect its parts as they relate to the shifting changes that every human experiences. Viorst relies on her extensive education in psychology and the imminent figures she has studied, such as Sigmund Freud.