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: 

Aagerup, Ulf
Abbas, Syed
Abdul Rehman , Aisha 
Aboulnasr, Khaled
Abratt, Russell
Abu Elsamen, Amjad
Acuti, Diletta
Adiguzel , Feray
Aggarwal, Pankaj
Ahmad, Fayez
Ahn, Sungsook
Ahuvia, Aaron
Ajitha, Soundararaj
Akhter, Syed
Alavi, Sascha
Aldas-Manzano, Joaquin
Alniacik, Umit
Alvarado-Karste, Diego
Amos, Clinton
Anaya-Sánchez, Rafael
Andreini, Daniela
Archontakis, Fragiskos
Areni, Charles
Ashill, Nicholas
Azar, Salim L.
Azer, Jaylan
Azevedo, Antonio
Baalbaki-Yassine, Sally
Baber, Ruturaj
Babin, Barry
Bachmann, Frank
Backhaus, Christof
Badar, M. Affan
Badrinarayanan, Vishag
Balasubramanian, Siva
Baltas, George
Banerjee, Dr. Saikat
Barta, Sergio
Bartikowski, Boris
Basil, Debra
Baumgarth, Carsten
Baumgartner, Bernhard
Bayarassou, Oula
Becerra, Enrique
Beise-Zee, Rian
Bendixen, Michael
Bennett, Aronte
Bhandari, Min Prasad
Bhattacharya, Subhajit
Biedenbach, Galina
Bigi, Alessandro
Black, Iain
Blankson, Charles
Boisvert, Jean
Bonde, Anders
Boon, Edward
Borges Tiago, Flávio
Borges-Tiago, Maria Teresa
Boyle, Peter
Brandão, Amélia
Breazeale, Michael
Brunetti, Federico
Bruns, Daniel
Buckley, Christen
Buil, Isabel
Burgess, Jacqueline
Burghausen, Mario
Burmann, Christoph
Burnham, Thomas
Campbell, Colin
Casillas Bueno, Jose Carlos 
Chakrabarti, Somnath
Chan, Elisa
Chan, Fanny Fong Yee
Chang, Chia-Wen
Chang, Dae Ryun
Changchitt, Chuleeporn
Chatzipanagiotou, Kalliopi
Chaudhuri, Malika
Cheah, Jun-Hwa
Chen, Bowei
Chen, Rui
Chen, Yu-Shan
Cheung, Man Lai
Chevtchouk, Yanina
Choi, Laee
Choi, Pilsik
Christodoulides, George
Chrysochoidis, George
Chrysochou, Polymeros
Chung, Jae-Eun
Chung, Sung Yun (Ashley)
Coelho Do Vale, Rita
Coelho, Filipe
Cowan, Kirsten
Crittenden, Victoria
Cruz-Milan, Oliver
Cui, Charles
Czarnecka, Barbara
Da Silveira, Catherine
Dall'olmo Riley, Francesca
Das, Manish
Davcik, Nebojsa
Davies, Gary
Davies, Gary
Davis, Svetlana
Dawra, Jagrook
Deepa, R
Delgado Ballester, Elena
Delong, Deborah
Delvecchio, Devon
Dens, Nathalie
Dessart, Laurence
Dey, Dipanjan
Dinnie, Keith
Dong, Xinyu
Du, Jiangang
Duffy, Kathernine
Eklund, Andreas
El-Manstrly, Dahlia
Ertz, Myriam
Esmark Jones, Carol
Fecdorenko, Ivan
Fernandes, Teresa
Ferreira, Caitlin
Fetscherin, Marc
Fleck, Nathalie
Flight, Richard
Flint, Daniel
Francisco Maffezzolli, Eliane
Friedmann, Enav
Frizzo, Francielle
Gammoh, Bashar
Gaski, John
Gilal, Naeem Gul
Gilal, Rukhsana Gul
Giovanis, Apostolos
Glynn, Mark
Gokhale, Nilesh
Gómez-Suárez, Mónica
Grazzini, Laura
Gregory, Gary
Griffin, Abbie
Grimm, Pamela
Grohmann, Bianca
Ha, Hong-Youl
Ha, Minh-Tri
Hadjimarcou, John
Hajdas, Monika
Hakala, Ulla
Hallegatte, Damien
Harrison, Dana
Hassanniakalager, Arman
Hatzithomas, Leonidas
Haverila, Matti
Heere, Bob
Hegner, Sabrina
Hellmann, Kai-Uwe
Hem, Lief
Hennigs, Nadine
Henseler, Jörg
Hesse, Andreas
Hickman, Thomas
Hingston, Sean
Hook, Dr Margurite
Hoskins, Jake
Howie, Katharine
Huddleston, Patricia
Hussain, Khalid
Hüttl-Maack, Verena
Iglesias, Oriol
Ind, Nicholas
Islam, Jamid
Iyer, Pramod
Izadi, Behzad
Jain, Varsha
Jang, Wooyoung William 
Jaziri, Dhouha
Jevons, Colin
Jian, Yufan
Kacha, Mathieu
Kalafatis, Stavros
Karampournioti, Evmorfia
Karaosmanoglu, Elif
Kautish, Pradeep
Kennedy, Eric
Ketron, Seth
Khan, Alia
Kieu, Tai
Kim, Sojung
King, Ceridwyn
Kivenzor, Gregory
Kleyn, Nicola
Kordrostami, Melika
Korschun, Daniel
Kostyk, Alena
Kowalczyk, Christine
Krishnan, Vijaykumar
Kristal, Samuel
Kumar, Jitender
Lagier, Joelle
Landreth-Grau, Stacy
Lang, Beichen
Langner, Sascha
Laporte, Marie-Eve
Laroche, Michel
Leckie, Civilai
Lee, Chia-Lin
Lee, Linda
Lee, Zoe
Leek, Sheena
Li, Fuan
Limongi, Ricardo
Liu, Xian
Llonch Andreu, Joan
Lopez, Carmen
Lu , Yunjie
Maaninou, Nada
Machado, Joana
Manis, Kerry
Martin, Emeline
Martos-Partal, Mercedes
Mas, Erick
Matarazzo, Michela
Matthews, A. Lynn
Mazzoli, Valentina
Mcdonald, Robert
Mcgovern, Enda
Michaelidou, Nina
Mikkelson, Alan
Milfeld, Tyler
Miller, Chadwick
Mills, Adam
Millson, Murray
Mingione, Michela
Miniero , Guilia
Mogaji, Emmanuel
Mohamed, Hassan
Mohammad, Rahman
Moorhouse, Janice
Morgan-Thomas, Anna
Mousavi, Sahar
Mueller, Steven
Mukherjee, Amaradri
Mumuni, Alhassan
Muniz, Fernanda
Muzellec, Laurent
Naderi, Iman
Naletelich, Kelly
Nejad, Mohammad
Nes, Erik
Ngo, Liem
Nguyen, Thuy D.
Nysveen, Herbjorn
Odoom, Raphael
Oh, Hyunjoo
Olson, Erik
Osuna Ramírez, Sergio Andrés
Oubiña, Javier
Palau-Saumell, Ramon
Pandey, Neeraj
Pantin Sohier, Gaelle
Papadopoulos, Nicolas
Pappu, Ravi
Paraskevas, Argouslidis
Park, Hyun Jung
Park, Jihye
Paswan, Audhesh
Patino, Anthony
Paul, Justin
Pedeliento, Giuseppe
Pederzoli, Daniele
Pérez-Cabanero, Carmen
Petruzzellis, Luca
Pich, Christopher
Piehler, Rico
Piha, Lamprini
Pitta, Dennis
Pizzetti, Marta
Pluntz, Camille
Popp, Bastian
Pourazad, Naser
Prado, Paulo
Prevel Katsanis, Lea
Rahmani, Vahid
Raithel, Sascha
Ramadan, Zahy
Renton, Michelle
Riahi Pour , Parichehr
Rich, Gregg
Rodhain, Angélique
Rodrigues, Clarinda
Roggeveen, Anne
Rojas-Méndez, José I.
Roy, Subhadip
Roy, Subhadip
Rudkowski, Janice 
Ruiz Mafe, Carla
Saavedra, José 
Santiago, Joanna
Saraniemi, Saila
Sarantidis, Paraskevi
Schivinski, Bruno
Scholz, Tobias
Schroll, Roland 
Scott, Shawn
Semaan, Rania
Sepulcri, Lara
Seraphim, Joanna
Sharma, Purvendu
Sheinin, Daniel
Shen, Feng
Shperd, Ifan
Siamagka, Nikoletta Theofania
Sierra, Jeremy
Smith, Donna
Söderlund, Magnus
Sonja Grabner-Kräuter, Sonja
Srivastava, Ankur
Stanton, Julie
Stevens, Jennifer
Su, Jin
Syed Alwi, Sharifah
Tafesse, Wondwesen
Taillon, Brian
Tan Wei Han, Garry 
Taylor, David
Thapa, Sajani
Thomas, Robert
Thompson, Scott
Tolunay, Asli
Torelli, Carlos
Torres, Anna
Torres, Pedro
Trunfio, Mariapina
Tuan, Annamaria
Ullrich, Sebastian
Urde, Mats
Vafeiadis, Michail
Valette-Florence, Pierre
Van Der Westhuizen, Liezl-Marie
Van Steenburg, Eric
Vera Martínez, Jorge
Vila, Natalia
Vogel, Areti
Von Mettenheim, Walter
Vredeveld, Anna
Wagner, Ralf
Wallace, Elaine
Walsh, Michael
Walten, Levke
Wang, Ye
Wang, Yi-Ting
Warden, Clyde
Wiedmann, Klaus-Peter
Willems, Kim
Xu, Yingjiao
Yadav, Abhishek
Yagüe, María
Yazdanparast, Atefeh
Yi, Jisu
Yousaf, Anish
Yousaf, Salman
Zamudio, Cesar
Zarantonello, Lia
Zarkada, Anna
Zelenskaya, Elena 
Zhang, Chun
Zhang, Ya
Zheng, Supeng
Zoghaib, Alice