Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Is laughter or tears appropriate?

This snapshot of history reveals amazing people in their ageless pursuits of glory and acclaim and personal satisfaction, not simply an article from Architecture Digest. For me, ambition means knitting a pair of socks. For these guys, it's building the first skyscraper. It's developing electric light. It's performing Wild West show stunts for audiences. It's mindless serial murder of helpless women.What a fascinating look at the spectrum of possibilities people are capable of through the relating of historical true events. The telling of how the Chicago World's Fair came to be and of the most interesting luminaries and rogues intrigued with the possibilities a fair offered for their particular hopes to advance their visions, this reader was surprised at how the nuts and bolts of engineering, both political and physical, relied just as much on the personalities of people as it did on personal skills and education.This is a terrific book.