The bestselling story of the young inventor who brought electricity to his Malawian village, now in an accessible middle grade editionWhen a terrible drought struck William Kamkwamba's tiny village in Malawi, his family lost all of th...

Tracy Kidder is a winner of the Pulitzer Prize and the author of the bestsellers The Soul of a New Machine, House, AmongSchoolchildren, and HomeTown. He has been described by the BaltimoreSun as the "master of the non-fiction nar...

Charles Darwin published The Origin of Species, his revolutionary tract on evolution and the fundamental ideas involved, in 1859. Nearly 150 years later, the theory of evolution continues to create tension between the scientific and r...