The Henry Janssen Library, located at 160 Spring Street, Reading, PA, is the center for genealogical and historical research at the Historical Society of Berks County. The Henry Janssen Library is acknowledged to be one of the best and most thoroughly indexed collections of county data in Pennsylvania. Library opening hours are Wednesday through Friday, 8AM to 5PM and Saturday, 8AM to 4PM. Access to the library is free for members of the Historical Society of Berks County. There is a charge of $7 per day for library access for non-members. Children under the age of 18 must be accompanied by an adult.