 In 2006, Avise joined with Francisco Ayala to inaugurate a series of annual Sachler Colloquia, sponsored by the National Academy of Sciences, entitled "In the Light of Evolution" (ILE).Each ILE installment highlights a topic that can be informed by evolutionary thought and has broader societal relevance.Proceedings of ten ILE colloquia were published in PNAS, and most also appeared as edited books from the National Academies Press.