Dear Colleagues, Dear Friends I am honored to announce that the 13^th International Meeting on Cholinesterases and the 7^th International Conference on Paraoxonases will be organised under my supervision in the Czech Republic: 9^th to 14^th of September 2018 Hradec Králové, Czech Republic We would like to gather all researchers around the globe with a focus on cholinesterases, paraoxonases and also phosphotriesterases and I feel privileged to follow up the meeting in Elche in 2015 and further extend the great tradition of cholinesterase meetings dated since 1975. Dear friends, please accept my cordial invitation to our meeting in the heart of Europe, namely to the historic city of Hradec Králové, which is located about 1 hour drive from Prague. The meeting will be organised in a classic format and I’m sure that our community of researchers along with a placid venue will create a familiar environment, so typical for preceding meetings. The meeting will be organised by the University of Hradec Králové under the patronage of The Minister of Health, The President of Hradec Kralove region and the Mayor of the City of Hradec Králové. I would like to promise that I and the organising team will do our best to host a top quality meeting and make your stay comfortable as much as possible. I am looking forward to meeting you in our beautiful historic city of Hradec Králové!   Yours sincerely, Kamil Kuča Chair of the Organising Committee and Rector of the University of  Hradec Králové

Keywords: Meeting; Conference; cholinesterase; paraoxonase; phosphotriesterase; Hradec Králové