HARKER HEIGHTS â The Stewart C. Meyer Harker Heights Public Library hosted a Big Truck Day exhibition in the libraryâs parking lot on Wednesday. Visitors were able to get an up-close look at a variety of large trucks including police vehicles, fire trucks, ambulances, tractors, waste management trucks, and a U.S. Army infantry carrier vehicle called a Stryker. Heights childrenâs librarian Erica Rossmiller said the Big Truck event helps attract families and introduces them to community helpers that keep the city running. âFirefighters, police officers, animal control, and the military of course,â Rossmiller said. Rossmiller said the event was held at the library to show people the library has more purposes than lending books.