Recently, several attendees of 26th ICPOC received scam emails regarding room reservations from some traval agencies (such as Royal Visit, etc.). These emails are fishing or scam emails, please just ignore them if you receive such kind of emails in future. Our conference venue, The Beijing Friendship Hotel will not contact you without our consent, and if necessary, we will only contact you through conference official email (icpoc26@mail.tsinghua.edu.cn). Please do contact us if you are not sure about the received email is scam or fishing type before you make a reply.