Events Summer Reading Family Engineering Night July 20 July 18, 2017 Princeton Public Library Leave a comment Thursday, July 20 at 6:30 p.m. pre-school through 4th graders (with parents and older siblings) are invited to participate in hands-on activities and challenges to learn about basic engineering concepts. This will be a fun night for everyone! Share this:TwitterFacebookPinterestEmailPrintLike this:Like Loading...