On Thursday, May 12, at 5:30 p.m., in Gallery 26, 26 West Dover Street (the old Cherry’s building), the Talbot County Free Library will present a talk by local author and engineer John Reisinger. Reisinger’s subject is building engineering. From the Cathedral at Chartres to the Great Wall of China, the world is full of impressive structures with inside stories few of us know. Reisinger will reveal, for instance, how balloons were used to design part of Disney World, how a controversial bridge in Cincinnati became the model for the Brooklyn Bridge, and how one of the world’s most graceful structures was once considered an eyesore. All library programs are free and open to the public. Patrons need not pre-register for this program. For more information, call the library at 410-822-1626, or visit www.tcfl.org.