at Lisbon Marriott Hotel on 4 Dec 2018 – 8 Dec 2018

at Mercure Hotel MOA Berlin on 30 Nov 2016 – 3 Dec 2016

at Folies Bergère on 2 Dec 2015 – 5 Dec 2015

at Hotel Ossa Congress & Spa**** on 12 Nov 2015 – 15 Nov 2015

at Hotel Auditorium on 26 Nov 2014 – 29 Nov 2014

at Westin Hotel on 9 Dec 2013 – 14 Dec 2013

at Marriott Rive Gauche on 17 Nov 2013 – 20 Nov 2013

at Przedwiosnie Hotel on 20 Oct 2011 – 23 Oct 2011

at Warsaw Business School on 3 Apr 2011