Jim Costa is Executive Director of the Highlands Biological Station (Highlands, North Carolina, USA) and Professor of Biology at Western Carolina University (Cullowhee, North Carolina, USA), where he has been on the faculty since 1996. An entomologist with a special interest in social evolution, he has studied insect social behavior widely from the southern Appalachians to Latin America and Europe. Through his entomological work Jim is also a long-time Research Associate in Entomology at Harvard's Museum of Comparative Zoology, and in 2004-2005 was named Jean Rosselet Fellow at Harvard's Radcliffe Institute for Advanced Study, where he completed his first book, 'The Other Insect Societies' (Harvard University Press, 2006). Jim has taught genetics, biogeography, entomology, Darwin's 'On the Origin of Species,' and field courses in Highlands, Hawai'i, and the desert southwest. His interest in Darwin and the history of evolutionary biology takes him to England each summer, where he teaches 'On the Origin of Species' in Harvard's summer program at the University of Oxford. Jim also lectures widely in the US and Europe on social evolution, early naturalist-explorers such as William Bartram, and Darwin, Wallace, and the history of evolutionary thinking. He is a regular expedition leader in the Galápagos Islands for the Harvard Museums of Science & Culture, lecturing on Darwin, Wallace, and island ecology and evolution. In 2009 Harvard University Press published 'The Annotated Origin,' Jim's annotated edition of 'On the Origin of Species,' designed to help readers better understand the historical context, structure, and content of Darwin's masterwork. In 2012-2013 Jim and his family spent a year-long sabbatical year in Berlin, Germany, where Jim was a Fellow of the Berlin Institute for Advanced Study -- the Wissenschaftskolleg zu Berlin. There he completed his latest books, celebrating Alfred Russel Wallace, the renowned tropical explorer and collector, founder of the field of evolutionary biogeography, and co-discoverer with Darwin of natural selection in 1858. 'On the Organic Law of Change' (Harvard, 2013) is an annotated transcription of the most important field notebook kept by Wallace during his southeast Asian explorations in the 1850s. This notebook provides new insights into the development of Wallace's evolutionary thinking though this formative period. In the companion volume 'Wallace, Darwin, and the Origin of Species' (Harvard, 2014) Jim analyzes Wallace's ideas on evolution in the notebook period in comparison with Darwin's thinking, and examines the relationship between these two giants of evolutionary biology.