The book is exactly what it claims to be: a photographic record of the 1906 San Fransisco earthquake and fire. It is basically a picture book, but the pictures are beautiful. There are some "before" pictures of the city, which helps drive home the point of the severity of the devastation with the "after" pictures.
Text is pretty sparse, but it does present some interesting facts. A graph is provided showing the $474,211.03 sent by foreign governments to the relief effort, broken down by nation. Interestingly, some very wealthy European countries were at the bottom of the list (Germany sent $50, England $6,570.88) while emerging countries sent much more (Japan sent $244,960.10, China sent $40,000).