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:

• Abdallah, Asma
• Abdous, M'hammed
• Abid, Nisar
• Abouchedid, Kamal
• Abukari, Abdulai
• Adel, Riham
• Ahmad, Naveed
• Al Shraah, Ata
• Alalfy, Hany
• Alang, Tho
• Alfan, Ervina
• Altin Gumussoy, Cigdem
• Amin, Zeinab
• Anis, Azilah
• Arora, Sangeeta
• Ashiq, Murtaza
• Athiyaman, Adee
• Atvars, Teresa Dib Zambon
• Avolio, Beatrice
• Ayobami Alani, Ramoni
• Baguena, Judith
• Bailie, Frances
• Barak Levy, Yael
• Bassi, Francesca
• Bennett, Misty
• Bentall, Clare
• Bentancur, Nicolás
• Beutell, Nicholas
• Blanco, Gerardo
• Bolton, Dianne
• Brinia, Vasiliki
• Brinkman - Staneva, Marina
• Brookes, Wayne
• Brown, Natalie
• Calderon, Angel
• Calma, Angelito
• Cancino Cancino, Víctor Eduardo
• Cardoso, Sónia
• Castillo, Nathan
• Chaudhary, Sartaj
• Chină, Remus
• Choong, Yuen Onn
• Clarke, Marie
• Coates, Hamish
• Conte, Nelly
• Čopková, Radka
• Cullen, Anthony
• Curry, Adrienne
• Daloglu, Aysegül
• Dama, Sebastian
• Daniela, Linda
• Dar, Wahid
• Debnath, Roma Mitra
• Dee, Jay
• Deka, Rudra Kanta
• Dela Rosa, Rhodora
• Depoo, Lucie
• Deshmukh, S. G.                 
• Dewi, Yustina Erti Pravitasmara
• Dey, Ajoy
• Dhawan, Shivangi
• Donleavy, Gabriel
• Donoso, Sebastián
• Douglas, Alexander           
• Douglas, Jacqueline
• Duzevic, Ines
• Edwards, Daniel
• Elassy, Noha
• Elliott, Geffrey
• Espinoza, Oscar
• Evans, David
• Faganel, Armand
• Fernandes, Rafael
• Fernández González, Manuel Joaquín
• Fernandez, Frank
• Ferris, Timothy
• Fitsilis, Panos
• Flumerfelt, Shannon
• Freeman, Brigid
• Frei, Rivi
• Gajardo Espinoza, Katherine
• Gallifa, Josep
• Garg, Ankita
• Geoffroy, Esteban
• Ghozi, Saiful
• Gitomer, Drew
• Goby, Valerie Priscilla
• Godinho Antunes, Marina
• Gomis, Kasun
• Gopalan, Neena
• Gordon, George
• Greere, Anca
• Gregorutti, Gustavo
• Griffith, Andrew S.
• Griffith, Stafford
• Grigg, Nigel
• Halcoussis, Dennis
• Halim, Lilia
• Hanif, Rubina
• Haqbin, Naqibullah
• Hariri, Randa
• Hauptman Komotar, Maruša
• Heart, Tsipi
• Hermelin Fine, Yaara
• Higson, Helen
• Ibna Seraj, Prodhan Mahbub
• Idrus, Nirwan
• Inan, Serhat
• Iqbal, Shahzaf
• Istijanto, Istijanto
• Jabnoun, Naceur
• Jamshed, Jibran
• Janke, Cornelia
• Jayamaha, Nihal
• Jayamohan, K. G.
• Jerez Cancino, Emeline Carmen
• Johnson, Eileen
• Kalaçay, Burak
• Kara, Ali
• Karaca, Mehmet
• Karyy, Oleh
• Kauppila, Osmo
• Kennedy, Kerry
• Keraro, Fred
• Khalil, Manale
• Khampirat, Buratin
• Khanolainen, Daria
• Kibriya, Shahriar
• Kinzie, Jillian
• Kluse, Christopher
• Knapp, Mariella
• Koslowski Iii, Fred
• Kotsifos, Vangelis
• Kranenburg, Ineke
• Krehbiel, Timothy
• Kumar, Pankaj
• Kundu, Arnab
• Lane, Murray
• Leihy, Pete
• Leipold, Malissa
• Leko Šimić, Mirna
• Levin, Elizabeth
• Levin, Orna
• Lim, Choon
• Lopez Gomez, Ernesto
• Luka, Ineta
• Mahmoud, Ali
• Mavrikakis, Evaggelos
• Mayger, Linda
• Mc Grath, Valerie
• Mellar, Harvey
• Meyer, John
• Modrek, Anahid
• Molina-Vásquez, Ruth
• Mukhamejanova, Dinara
• Mukhtar, Umer
• Murray, Sarah
• Nel, Carisma
• Netshakhuma, Nkholedzeni Sidney
• Nguyen, Cuong Huu
• Nguyen, Thanh
• Nickerson, Catherine
• Odetunde, Analisa
• Okyere, Gabriel
• Oliver, Benjamin
• Pak Tee, Ng
• Palmer, Nigel
• Palumbo, Rocco
• Parahoo, Sanjai
• Paryente, Bilha
• Patra, Soumendra
• Perrin, Stuart
• Petrušić, Irena
• Pham, Huong
• Pham, Nhung
• Philalithis, Anastas
• Pineda, Pedro
• Pivovarova, Margarita
• Potterton, Amanda
• Prakash Gyan, Gyan
• Raibagkar, Shirish
• Rajashekharaiah, Jagadeesh
• Ramírez-Valdivia, Martha
• Roy, Joydeep
• Rukmana, Diki
• Rybinski, Krzysztof
• Saiti, Anna
• Salazar, Jose
• Saleem, Farida
• Sanner, Bret
• Scharager, Judith
• Schorr Edelsztein, Hani
• Segev, Yael
• Seyfried, Markus
• Sharrock, Geoff
• Sibai, Mohammad
• Singh, Ajit
• Singh, Ramanjeet
• Singh, Jitendra
• Singh, Reetesh K
• Singh, Sonali
• Smith, Clayton
• Stensaker, Bjorn
• Stone, George
• Subrahmanyam, Annamdevula
• Sumaedi, Sik
• Syafi'i, Ahmad
• Sziegat, Hongmei
• Tahir, Lokman
• Tan, Choon Yong Alex
• Tarí, Juan José
• Teeroovengadum, Viraiyan
• Teo, Ian
• Thareja, Priyavrat
• Thoib, Ismail
• Thurab-Nkhosi, Dianne
• Tkachenko, Daria Tkachenko
• Toran, Mehmet
• Tóth, Zsuzsanna
• Tsiligiris, Vangelis
• Véliz, Daniela
• Wang, Fenping
• Wang, Ling
• Wilkerson, Judy
• Wiśniewska-Sałek, Anna
• Wongsurawat, Winai
• Wood, Roy
• Zamir, Sara
• Zapata, Gonzalo
• Zheng, Hong
• Zizka, Laura
• Zuilkowski, Stephanie