The publishing and editorial teams would like to thank the following, for their invaluable service as 2021 reviewers for this journal. We are very grateful for the contributions made. With their help, the journal has been able to publish such high-quality articles:
| Achmet, Véronique |
| Adobor, Henry |
| Agostino, Deborah |
| Akenroye, Temidayo |
| Akonnor, Augustina |
| Alexandrou, Alex |
| Ameza-Xemalordzo, Enya |
| An, Brian Yeokwang |
| Andrews, Rhys |
| Anguelov, Lachezar |
| Anikwe, Sunday |
| Ansah, John |
| Aquino, André |
| Argento, Daniela |
| Ashikali, Tanachia |
| Atkinson, Christopher |
| Aversano, Natalia |
| Azhar, Aisha |
| Azis Firdaus, Muhamad |
| Barsoum, Ghada |
| Bayiz Ahmad, Ahmad |
| Begany, Grace |
| Bekkers, Victor |
| Bergman, Mats |
| Bernards, Bernard |
| Boersma, Kees |
| Bøgh Andersen, Lotte |
| Bonomi Savignon, Andrea |
| Bovaird, Tony |
| Boyer, Eric |
| Brandsen, Taco |
| Breaugh, Jessica |
| Brown, David |
| Brown, Travor |
| Budding, Tjerk |
| Caillier, James Gerard |
| Callahan, Richard |
| Campbell, Jesse |
| Capano, Giliberto |
| Cepiku, Denita |
| Chang, Yongjin |
| Chasukwa, Michael |
| Cheung, Anthony |
| Choi, Intae |
| Christensen, Robert |
| Christensen, Tom |
| Cicek, Berat |
| Cohen, Sandra |
| Common, Richard |
| Compton, Mallory |
| Coulas, Mary |
| Criado, Ignacio |
| Davis, Randall |
| De Jong, Maarten |
| De Kruijf, Johan A.M. |
| De Vries, Michiel |
| DeHart-Davis, Leisha |
| Demirciaogla, Mehmet |
| Denhere , Varaidzo |
| Di Mascio, Fabrizio |
| Dudau, Adina |
| Dumas, Benoît Paul |
| Egeberg, Morten |
| Farooq, Mahnoor Farooq |
| Fayos Gardó, Teresa |
| Fenwick, John |
| Ferlie, Ewan |
| Fernandez, Sergio |
| Fonseca, Diogo |
| Franken, Esme |
| Fryer, Karen |
| Fusco, Floriana |
| Gaus, Nurdiana |
| Gelaidan, Hamid |
| Gerrish, Ed |
| Gomes, Ricardo |
| Goulding, Anne |
| Greig, Alastair |
| Greve, Carsten |
| Grossi, Giuseppe |
| Halligan, John |
| Hansen, Morten |
| Hartley, Jean |
| Haveri, Arto |
| Heinrich, Carolyn |
| Helsloot, Ira |
| Hertting, Nils |
| Hodgkinson, Ian |
| Homburg, Vincent |
| Houtgraaf, Glenn |
| Howard, Cosmo |
| Ibrahim, Mohammed |
| Ingram, Matthew C. |
| Kalgin, Alexander |
| Katsos, John |
| Keppeler, Florian |
| Kerley, Richard |
| Kim, Jinho |
| Kim, Sangmook |
| Knight, Louise |
| Kostagiolas, Petros |
| Kuo, Chun-Chien |
| Kwena, Ronald |
| Lægreid, Per |
| Lee, Euipyo |
| Lemaire, Robin |
| Lewis, Jenny |
| Li, Hui |
| Lin, Scott Y. |
| Liu, Bangcheng |
| Lofgren, Karl |
| Lokke, Ann-Kristina |
| Macaulay, Michael |
| MacRae, Roderick J. |
| Mansoor, Mahnaz |
| Marumahoko , Sylvester |
| Masli, Eryadi Kordi |
| Massaro, Maurizio |
| Mastracci, Sharon |
| Matto, Mordecai |
| McCaskill, John |
| Meligrana, John |
| Melo, Ana |
| Merritt, Culen |
| Meyer-Sahling, Jan-Hinrik |
| Migchelbrink, Koen |
| Mohr, Zachary |
| Moldogaziev, Tima |
| Mussagulova, Assel |
| Mwesigwa, Rogers |
| Naveed, Shabana |
| Nemec, Juraj |
| Nistor, Cristina |
| Noto, Guido |
| Nur, Andi |
| Nur, Mohamad |
| O'Neill, Michael |
| Onyango, Gedion |
| Opara, Michael |
| Overman, Sjors |
| Panda, Prabir |
| Pappenfuss, Ulf |
| Patterson, Matthew |
| Pekkola, Elias |
| Pekkola, Samuli |
| Perry, Jim |
| Plimmer, Geoff |
| Poletti, Michele |
| Polzer, Tobias |
| Prasad, Aryamala |
| Puron-Cid, Gabriel |
| Radin, Beryl |
| Rainey, Hal |
| Rainville, Anne |
| Randma-Liiv, Tiina |
| Rangarajan, Nandhini |
| Rasheli, Geraldine |
| Raucci, Domenico |
| Raudla, Ringa |
| Reardon, Robert |
| Reinholde, Iveta |
| Roberts, Gary |
| Robertson, Peter |
| Roehrich, Jens |
| Rouban, Luc |
| Rowe, Mike |
| Royo, Sonia |
| Ruijer, Erna |
| Saddi, Fabiana da Cunha |
| Schmidt, Eduard |
| Siddiquee, Noore |
| Sillanpää, Virpi |
| Singh, Arkaja |
| Smith , Christy |
| Smith, Craig |
| Smith, Russell |
| Soar, Jeffrey |
| Stazyk, Edmund |
| Steen, Trui |
| Stewart, Jenny |
| Szydlowski, Gabriela |
| Tallaki, Mouhcine |
| To, Wai Ming |
| Torfing, Jacob |
| Tremblay, Marie-Soleil |
| Troupin, Steve |
| Ustener, Yilmaz |
| Van de Voort, Iris |
| Van de Walle, Steven |
| Van den Abeele, Wouter |
| Van Der Voet, Joris |
| van Genugten, Marieke |
| Van Ryzin, Gregg |
| Vandenabeele, Wouter |
| Vecchi, Veronica |
| Verhoest, Koen |
| Verschuere, Bram |
| Vigoda-Gadot, Eran |
| Vriesacker, Koen |
| Vu, Hang |
| Wang, Weijie |
| Welch, Nicole |
| Welles, Abreu |
| Wesemann, Andrew |
| White, Gareth |
| Yang, Hsiao-Pei |
| Yang, Zheng |
| Yashaiya, Nadia |
| Yen, Wei‐Ting |
| Yevu, Sitsofe |
| Ysa, Tamyko |
| Zahra, Abiha |