Join us for our outstanding April programs. Swing into baseball season on April 9, when Daniel Mack, Kansas City Royals Director of Baseball Analytics and Research Science, returns this year to discuss “Sabermetrics and the Empirical Analysis of Baseball.” Sabermetrics is one of the tools many Major League Baseball teams use to evaluate players and strengthen their roster. We have reached capacity for the 14th Annual Paul D. Bartlett, Sr. Lecture, on April 14, and additional registrations are being placed on a waiting list. The lecture features Yale University professor Richard Prum will present “The Evolution of Beauty,” on Prum is the William Robertson Coe Professor of Ornithology, Ecology, and Evolutionary Biology at Yale University, where he also serves as curator of ornithology and head curator of vertebrate zoology at the Peabody Museum of Natural History. The Bartlett Lecture Series is named for Paul D. Bartlett, Sr., who was the first chairman of the Board of Trustees of the Linda Hall Library. Under his leadership the Halls’ bequest for the creation of a public library in Kansas City was used to establish this library devoted to science, engineering, and technology. The lectures are presented by the Linda Hall Library in association with the Harvard-Radcliffe Club of Kansas City, the Princeton Alumni Association of Greater Kansas City, and the Yale Club of Kansas City. On April 21, SOCIAL Science returns with corporate jet pilot Austin Hunt presenting “Aviation – Flying High with Math and Science,” which gives our after-work crowd a chance to socialize and discuss aerodynamic lift. April ends with a lecture by Linda Hall Library Fellow Karl Galle discussing “The Unknown Copernicus” on April 28. See the related story on this page for more details.