Instruct: Classify Amazon reviews into positive or negative sentiment
Query: plenty of reference, hardly any strategy

While it's generally agreed that Prima's guides are often letdowns, the Civilization-type games have usually been a noteworthy exception to the trend. Until now.There are 28 pages (out of 320) of straight strategy. There's a useful section in the back on customizing 'modpacks'. The bulk of the rest of the book is a description of the base enhancements, techs, secret projects, and so on--all of which is available in the game with a mouseclick. (They do at least offer some suggestions on the relative values of the items.) They deemed it worth their time to include an index.What's missing is: an in-depth look at play as each faction; some hints on designing your own units (and how to get the most out of the fairly clunky unit design interface, about the only clunky part of the game's UI); and a meaningful sense of the diplomatic aspect of the game (which can be important).Mileage will vary, but compared to what Civ fans are used to this guide doesn't measure up.