What Went Through Erik Larson's Mind

I think Erik Larson wrote this book with the intent on informing his readers of what went on during the building of the World Fair. This is something I believe he did very successfully. This is a book that anyone with the slightest interest in the World Fair or the gruesome murders that took place during this time should read because this is honestly something that would truly interest them and show my even show them things they didn't even know.  When i really think about why Larson wrote this book i think he wrote it to really inform his readers that not everyone is who they say they are.