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)
29 January-5 February 2023: Jose Vivero (London School of Economics)
14-18 February 2023: Emine Yıldırım (University of Leeds)
24-28 April 2023: David Ploog (University of Stavanger)
29 May-3 June 2023: Eric Hanson (North Carolina State University)
6-10 June 2023: Thomas Brüstle (Université de Sherbrooke and Bishop's University)
6-10 June 2023: Henrik Holm (University of Copenhagen)
4-7 September 2023: Özgür Esentepe (University of Leeds)
18-24 September 2023: Benjamin Briggs (University of Copenhage)
28 September-5 October 2023: Francesca Fedele (University of Leeds)
15-22 October 2023: Kayla Wright (University of Minnesota)
23-27 October 2023: Lukas Bonfert (MPI Bonn)
29 October-3 November 2023: Rosanna Laking (Università degli Studi di Verona)
30 October 2023-2 November 2033: Laertis Vaso (NTNU)