Donald J. Albers served as Director of Publications and Associate Executive Director of the Mathematical Association of America (MAA) from 1991–2006 and Editorial Director of MAA Books from 2006–12. He was Editor of The College Mathematics Journal and Founding Editor of Math Horizons. He has written or co-authored six books, including Mathematical People and Fascinating Mathematical People – both with G. L. Alexanderson. Prior to his association with the MAA, he was Professor of Mathematics and Special Assistant to the President of Menlo College. Gerald L. Alexanderson is the Valeriote Professor of Science at Santa Clara University, California, where he has taught mathematics since developing an interest in problems under the guidance of George Pólya and enthusiasm for analytic number theory from a course with Gábor Szegö at Stanford. Long active in the Mathematical Association of America he has served as Secretary and as President, as well as Editor of Mathematics Magazine. He is author of many articles and reviews, and has co-authored or co-edited textbooks, problem collections, books of interviews, as well as biographies and books on history. William Dunham served as Koehler Professor of Mathematics at Muhlenberg College (emeritus, 2014) and taught mathematics history as a visiting professor at Harvard University, Princeton University, the University of Pennsylvania, and Cornell University. In 2009, he was a visiting scholar at the University of Cambridge, and the following year he recorded the DVD course 'Great Thinkers, Great Theorems' for The Teaching Company. He is the author of four books: Journey through Genius (1990), The Mathematical Universe (1995), Euler: The Master of Us All (1999), and The Calculus Gallery (2005). Dunham is currently a Research Associate in Mathematics at Bryn Mawr College, Pennsylvania.