World Music: The Basics

This book seems to be everything I've been looking for in a world music guide: simple clarity about what kinds of music are being made where, with suggestions about how to start listening to it. It reads like a good book on rock or jazz, avoiding the too-typical dry academic approach to "world" music. That's a good thing. One day into it, though, and I've already caught a glaring error (and I'm no expert). The book discusses Amadou & Mariam as a Senegalese act, when in fact they're from Mali. It's a pretty bad mistake, considering the book's premise (country-by-country coverage) and especially considering Amadou & Mariam's global stature. If there's a factual error in one of the areas I know anything about, how much can I trust the rest of it? ("The rest of it," of course, being where I want to find value in the book.) So. Helpful: yes. Authoritative: no. Treat it like Wikipedia I guess...a decent place to start, but don't take it to the bank.