5-11 September 2021: Francesca Fedele (Universities of Verona and Padua)
17-23 October 2021: Esther Banaian (University of Minnesota)
22 October-4 November 2021: Raphael Bennett-Tennenhaus (Universität Bielefeld)
2 March-1 August 2022: Azadeh Mehregan (University of Isfahan)
7-15 May 2022: Paul Smith (University of Washington)
8-14 May 2022: Mads Hustad Sandøy (Norwegian University of Science and Technology)
11-17 May 2022: Job Rock (Ghent University)
16-27 May 2022: Aran Tattar (University of Cologne)
6-17 June 2022: Martin Kalck (University of Freiburg)
3 July-1 August 2022: Javad Asadollahi (University of Isfahan)
11-22 July 2022: Yadira Valdivieso (Universidad de las Américas Puebla)
19-28 July 2022: David Pauksztello (University of Lancaster)
12-20 October 2022: Nicholas Williams (University of Lancaster)
12 October-25 November 2022: Johanne Haugland (Norwegian University of Science and Technology)
11 November 2022: Lars Winther Christensen (Texas Tech University)
20-27 November 2022: Matt Booth (University of Lancaster)