Instruct: Classify Amazon reviews into positive or negative sentiment
Query: All you ever wanted to know about labyrinths - and then some.

Purchased this thinking it was by "the famous David Mccullough" but it turned out not to be a disappointment. Admittedly, the perspective of the book is quite narrow and it may not appeal to many. It is, however very well written, contains a multitude of links to other subjects and should therefore be of interest to history lovers - even if they do not care to learn the difference between a labyrinth and a maze.