Dear All, It is with great pleasure that we announce the September-December schedule of the “One World Optimal Stopping and Related Topics” seminars (online). Detailed information and instructions for registration are available at https://sites.google.com/view/optimalstopping/home Please register again, even if you had already registered in the past academic year. Our first speaker on Wednesday 22 September at 5pm (London time) is: Damien Lamberton, Université Gustave Eiffel Title of the talk: On the American put in the Heston model Best wishes Tiziano De Angelis, Roxana Dumitrescu, Yerkin Kitapbayev, Mikhail Zhitlukhin