Rigorous peer-review is the corner-stone of high-quality academic publishing. The editorial team greatly appreciates the reviewers who contributed their knowledge and expertise to the journal’s editorial process over the past 12 months. In 2019, a total of 87 papers were published in the journal, with a median time to first decision of 29.8 days and a median time to publication of 63 days. The editors would like to express their sincere gratitude to the following reviewers for their cooperation and dedication in 2019:
| Achatz, Johannes | Kukem, Tesfaye Semela |
| Ahmad, Ahmad | Kunst, Maarten |
| Aly, Ramy M.K. | Laganà, Antonio Simone |
| Aplin, Tammy | Landrum, Brittany |
| Badau, Dana | Laspa, Christina |
| Baldini, Andrea | Legrand, Vincent |
| Bartkowski, John | Lesyk, Lilia |
| Baul, Tushi | Li, Manyu |
| Becerra, Luz Adriana Aristizábal | López-López, Daniel |
| Bechtold, Ulrike | Lysecki, Dave |
| Belzunegui-Eraso, Angel | Maia, Maria |
| Bertsou, Eri | Maidl, Elisabeth |
| Bethem, Jacob | Makarovič, Matej |
| Block Jr, Ray | Mangum, Maruice |
| Boomkens, Cynthia | Manikis, Marie |
| Bowman, Benjamin | Marsh, Pauline |
| Bridge, Dave | Martínez, Ángel Romero |
| Brown, David | Matei, Ani |
| Buscher, Dale | Matthews, Todd L. |
| Carrasco, Francisco Javier Fernández | Mazilescu, Crisanta-Alina |
| Castanho, Rui Alexandre | Mazza, Roberto |
| Charlier, Nathan | Mdegela, Mselenge |
| Choo, Pei Ling | Mertig, Angela |
| Ciarini, Andrea | Mijs, Jonathan Jan Benjamin |
| Clapton, Gary | Mitchell, Piers D. |
| Clark, Terry | Mitten, Denise |
| Conty, Arianne | Moldovan, Octavian |
| Cook, Joana | Mondal, Md. Sanaul Haque |
| Costa, Bruno | Moore, Karenza |
| Cox, David | Moore, Lisa Jean |
| Crock, Mary | Mrugalska, Beata |
| Cudd, Peter | Mugabi, Ivan K. |
| Cude, Brenda | Naafs, Bernard |
| D’Agostino, Antonella | Nam, Sangbo |
| Dabija, Dan-Cristian | Navarre-Jackson, Layana |
| DaCosta, Boaventura | Navarro, Raul |
| Dalsen, Jennifer | Nierling, Linda |
| Davis, Ronald | Nilsson, Stefan |
| Donnelley, Catherine | Nissilä, Paula |
| Dykstra-DeVette, Tiffany A. | Nkhoma, Pearson |
| Egorova, Yulia | O’Sullivan, Catherine |
| Ehsan, Rakib | Öhman, Marie |
| Eirín, Raúl | Omar, Sidi |
| Eltantawy, Nahed | Ortega-Sánchez, Delfín |
| Fawcett, Barbara | Papadimitriou, Christina |
| Fernández-Salinero, Samuel | Pearson, Ian |
| Fisher, Karen | Pedrini, Lorenzo |
| Fraga, Luis Ricardo | Pontes, Ana Isabel |
| Franceschelli, Michela | Ponzini, Giuseppe |
| Friso, Valeria | Prior, Sarah |
| García-Garnica, Marina | Procter, Paula |
| Gavurová, Beáta | Pryor, Wesley |
| Gibbons, Jeff | Quam-Wickham, Nancy |
| Giorgi, Emanuele | Ramos-Vidal, Ignacio |
| Głąbska, Dominika | Ravazzini, Laura |
| Gómez, M. Pilar Munuera | Ravn, Signe |
| Grazidei, Michele | Ryabov, Igor |
| Grey, Daniel J.R. | Samadi, Sayyed Ali |
| Grothe-Hammer, Michael | Sarfraz, Muddassar |
| Guiney, Thomas | Sawrikar, Pooja |
| Guo, Joanne | Scherer, Marcia |
| Hall, Matthew | Serpa, Sandro |
| Hamidi, Yalda | Severo, Marta |
| Hardeman, Rachel | Shepherd, Andrew |
| Hart, Corinne | Shorrock, Sarah |
| Hasnain, Rooshey | Škrinjarić, Tihana |
| Haugsgjerd, Atle | Smith, Olivia |
| Heikkilä, Elli | Smith-Khan, Laura |
| Heinz, Melinda | Smyth, Ciara |
| Herbert, Trevor | Soopramanien, Anba |
| Hersey, Joanna | Sparkes, Andrew |
| Hilton, Thomas F. | Stefanini, Alessandro |
| Hoang, Dong | Stienstra, Deborah |
| Hoffmann, Thomas | Stock, Robert |
| Holland, Samantha | Strecker, Tanja |
| Hood, Roger | Summers, Monica |
| Horhat, Florin George | Taylor, Angus |
| Impicciatore, Roberto | Threadgold, Steven |
| Jachimowski, Kayla | Tientgen, Grant |
| Jackson, Suzanne F. | Ufer, Ulrich |
| James, Zoë | Vandewiele, Wim |
| Jayaraman, Chandrasekaran | Vanzan, Anna |
| Jennings, George | Vil, Christopher St. |
| Jochnowitz, Leona | Voia, Marcel-Cristian |
| Johnson, Val Marie | Voroshilova, Anzhelika |
| Kadi, Selma | Warren, Jennifer R. |
| Kay, William | Welch, Rosie |
| Khoo, Shaun | Westgård, Theresa |
| Kidner, David W. | White, John Kenneth |
| Klein, Barbara | Wiesel, Ilan |
| Korkmaz, Emre Eren | Williams, Jannine |
| Kot, Sebastian | Willoughby, Louisa |
| Kovic, Marko | Wolff, Kristina |
| Krings, Bettina-Johanna | Wright, Elizabeth Quinn |
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