Acknowledgements
The reviewers of this special issue provided detailed and profound feedback which enabled the manuscripts to be improved substantially. We would like to thank Pedro Almeida, Louise Barkhuus, Pablo Cesar, Jorge Abreu, Santosh Basapur, Regina Bernhaupt, Lizzy Bleumers, Jan Bobeth, David Geerts, Cédric Courtois, Florian Floyd Müller, Niloofar Dezfuli, Marianne Obrist, Gunnar Stevens, Emmanuel Tsekleves and Lyndon Nixon. We are also grateful to Ahmet Çakir for supporting the idea of this special issue from the beginning and for his guidance throughout the whole process.