What is the author's style in Notes on Nursing by Florence Nightingale?

This book has a relatively simple structure of broad topics refined out to specific suggestions. There are thirteen main parts, not counting the conclusion. Under each part, a suggestion is made about the environment of patient care. Then, an explanation is offered as to why the suggestion is made. Finally, specific, practical examples, both with the suggestion and without of each topic are fleshed out with the inevitable conclusion affirming the initial suggestion made.