The story of Greg Mortinson and his pursuit to eventually build a ton of schools in Pakistan is a great one, but if you're over 12, I'd suggest that you read the actual version of Three Cups of Tea. It's a little more factual, and can get a bit boring at times as they describe the building process a little too extensively, etc. but it's generally a great book with a great lesson. There's a little bit of talk of sex, violence, etc. but nothing mature tweens and teens can't handle. An awesome story and an awesome man in this book.

Some of the events may be frightening to younger readers, but nothing too bad. What Greg Mortenson did for the people of Korphe was amazing. I hope to read the original soon.