Jehovah's Witnesses will return to Reading for a series of six weekend conventions again this year.
As many as 6,000 guests from at least five states are expected each day of the conventions.
Organizers spent Thursday preparing the Sovereign Center on Penn Street for the start of the conventions on Friday.
"We came in today. We spent a lot of time cleaning. We give the Sovereign Center a cleaning like it doesn't usually see. We make it ready just because we take it as a place of worship for us for the next three days," said Perry Allen, a spokesman.
This is the ninth year the Jehovah's Witnesses are hosting conventions in downtown Reading.