If I had to choose one item to take to Cambodia it would be the 4th edition of Dawn Rooney's book on Angkor. The background on the geography, religion, architecture, and cosmology in the first half of the book provides a wealth of information that will enhance anyone's trip to Angkor. The second half, grouped into ten recommended tours, details each temple by giving an overview of the site, the historical setting, and the layout, which in most cases is accompanied by a plan. Descriptions of the carvings are clearly written and add to one's enjoyment of the site. My only complaint is that Dawn Rooney didn't tell us more as she obviously loves Angkor and is most certainly one of the world's experts on the subject. I've read the book three times--before, during, and after my visit and, thinking about the lively narrative, good photographs, and comprehensive content, I may just read it again. I give this book five stars plus! Don't go to Angkor without it!