4.0

I enjoyed this. The book tells the story of William Kamkwamba, who as a young man in Malawi figures out how to build a windmill to power his family's house and farm. Despite the title of the book, most of it does not actually focus on the windmill itself -- there is a good amount of setup. That said, the setup is pretty important in terms of establishing the living conditions and educational challenges that William overcomes in order to build the windmill. Very inspirational, if sad at times.