On December 27, 1831, the H.M.S. Beagle left Plymouth Harbor for a round-the-world voyage. On board was would-be botanist Charles Darwin, the best tour guide biology has ever known. In 2009, we will celebrate Darwin’s 200^th birthday and the 150^th anniversary of The Origin of Species publication. What better way to prepare for this celebration than to plan your own voyage of discovery this summer? As in summers past, we have once again asked the reviewers of NSTA Recommends to help you plan that voyage by suggesting the best summer reading for teachers.