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:
| A. Alananzeh, Omar |
| Abd Elwarith, Marwa |
| Abdullah, Nor Athiyah |
| Abokhoza, Reneh |
| Abrantes, José |
| Abubakar, A. Mohammed |
| Abuhashesh, Mohammd |
| Adie, Bailey |
| Ahmad, Rozila |
| Ahn, Jiseon |
| Al-Kwifi, Osama Sam |
| Alaei, Ali Reza |
| AlBattat, Ahmad |
| Albinsson, Pia |
| Ali, Alisha |
| Ali, Faizan |
| Ali, Imran |
| Altinay, Levent |
| Álvarez, Miguel |
| Amaro, Suzanne |
| Ameen, Nisreen |
| Amin, Muslim |
| Andersson, Tommy |
| Antolini, Fabrizio |
| Antonio, Nuno |
| Aramendia-Muneta, Maria Elena |
| Atadil, Hilmi |
| Au, Norman |
| Aureliano-Silva, Leonardo |
| Avci, Eda |
| Aziz, Yuhanis |
| Ba, Hung |
| Bae, Stephanie |
| Bahja, Jonilda |
| Bai, Billy |
| Balasubramanian, Kandappan |
| Basaran, Murat Alper |
| Battiti, Roberto |
| Bayram, Murat |
| Becker, João Luiz |
| Behl, Abhishek |
| Behnke, Carl |
| Belarmino, Amanda |
| Beldona, Srikanth |
| Benckendorff, Pierre |
| Bilgihan, Anil |
| Boger, Carl |
| Bokunewicz, Jane |
| Bravo, Rafael |
| Bufquin, Diego |
| Bujisic, Milos |
| Bulchand-Gidumal, Jacques |
| Butt, Irfan |
| Caber, Meltem |
| Cain, Lisa |
| Çakıcı, Abdulcelil |
| Camilleri, Mark Anthony |
| Canziani, Bonnie |
| Carmer, Adam |
| Casais, Beatriz |
| Catalán, Sara |
| Cavusoglu, Muhittin |
| Celdrán Bernabeu, Marco A. |
| Çeltek, Evrim |
| Celuch, Krzysztof |
| Cetinkaya, Ali Sukru |
| Cham, Tat Huei |
| Chan, Hing Kai |
| Chang, Hsuan |
| Chang, Hyo Jung |
| Chau, Keng Fong |
| Chawla, Gaurav |
| Cheah, Jun-Hwa |
| Chen, Shih-Chih |
| Chi, Oscar Hengxuan |
| Choi, Chris |
| Choi, Suh-hee |
| Choi, Youngjoon |
| Chou, Shih-Wei |
| Choudhary, Chiranjib Kumar |
| Christodoulidou, Natasa |
| Chung, Namho |
| Ciftci, Olena |
| Cizel, Beykan |
| Coetzee, Willem |
| Collins, Galen |
| Correia, Antonia |
| Cruz-Jesus, Frederico |
| Curras-Perez, Rafael |
| Czernek-Marszałek, Katarzyna |
| D'Auria, Anna |
| De Campos, Luis |
| De Canio, Francesca |
| De la Ballina Ballina, Francisco |
| Dedoglu, Bekir Bora |
| DeFranco, Agnes |
| Del Chiappa, Giacomo |
| Del Gesso, Carla |
| Demir, Mahmut |
| Demirciftci, Tevfik |
| Deng, Zhiming |
| Diaz-Meneses, Gonzalo |
| Dimitrovski, Darko |
| Doğan, Seden |
| Doğdubay, Murat |
| Dogru, Tarik |
| Duarte, Paulo |
| Dudhee, Vishak |
| Duffy, Andrew |
| Dutt, Christopher |
| Egan, David |
| Erceg, Aleksandar |
| Erdem, Mehmet |
| Ergul, Mehmet |
| Erkan, Ismail |
| Fan, Daisy |
| Fang, Wei-Ta |
| Farboudi Jahromi, Melissa |
| Feng, Shi |
| Fernandes Guzzo, Renata |
| Filimonau, Viachaslau |
| Folorunso Adeyinka-Ojo, Samuel |
| Frías-Jamilena, Dolores |
| Frochot, Isabelle |
| Frontoni, Emanuele |
| Fuchs, Matthias |
| Gao, Shang |
| Garbin Praničević, Daniela |
| Ghaderi, Zahed |
| Ghaharian, Kas |
| Ghahreman, Rashin |
| Ghosh Dastidar, Surajit |
| Gironda, John |
| Go, Hanyoung |
| Gordon, Susan |
| Grechi, Daniele |
| Grechyn, Viktor |
| Gretzel, Ulrike |
| Gunden, Nefike |
| Guzman-Parra, Vanesa F. |
| Han, Garry Tan Wei |
| Hancer, Murat |
| Hatamifar, Pezhman |
| He, Zeya |
| Hsu, Hsuan |
| Hsu, Mao-Chou |
| Hu, Meng-Lei, I-Chen |
| Hua, Nan |
| Huang, Dan |
| Huang, Wen-Shiung |
| Huang, Yung-Kuei |
| Ilkhanizadeh, Shiva |
| Israel, Kai |
| Ivanov, Stanislav |
| Jang, Jichul |
| Jeong, Miyoung |
| Jo, JJ |
| Johns, Raechel |
| Johnson, Abbie-Gayle |
| Jorge, Filipa |
| Jung, Shinyong |
| Karakaş, Ezgi |
| Kasavana, Michael |
| Kayar, Gizem |
| Kesgin, Muhammet |
| Khair, Nadine |
| Khaw, Ooi San |
| Kim, Hyelin (Lina) |
| Kim, Hyunsu |
| Kim, Jinkyung Jenny |
| Kim, Jinwon |
| Kim, Minho |
| Kim, Woo-Hyuk |
| Kim, Woody |
| Kirant Yozcu , Ozen |
| Kirimhan, Destan |
| Kitsios, Fotis |
| Kizildag, Murat |
| Konar, Rupam |
| Koseoglu, Mehmet Ali |
| Kubickova, Marketa |
| Kumar, Anil |
| Kung, Chih-Chun |
| Kwok, Linchi |
| Kwun, David |
| Lai, Ivan |
| Law, Rob |
| Le, Linh |
| Lee, Andy |
| Lee, Chung Hun |
| Lee, Harold |
| Lee, HyeRyeon |
| Lee, Kyung Young |
| Lee, Lindsey |
| Lee, Minwoo |
| Lee, Misuk |
| Lee, Samuel |
| Lee, Seonjeong Ally |
| Lee, Seul Li |
| Lee, Woojin |
| Legg, Mark |
| Lei, Soey Sut Ieng |
| Leung, Daniel |
| Leung, Rosanna |
| Leung, Xi |
| Lexhagen, Maria |
| Li, Jun (Justin) |
| Li, Lin |
| Li, Minglong |
| Li, Qinghui |
| Li, Shanshi |
| Lim, Juhwan |
| Liu Lastres, Becky |
| Liu, Tsong-Zen |
| Lodhi, Rab Nawaz |
| Losada, Nieves |
| Lu, Qiulin |
| Lui, Tsz-Wai |
| Magnisalis, Ioannis |
| Mandić, Ante |
| Mao, Zhenxing (Eddie) |
| Marques , Susana |
| Maurer, Christian |
| Mehraliyev, Fuad |
| Mellon, Victoria |
| Memarzadeh, Faranak |
| Micera, Roberto |
| Míguez-González, María |
| Mihalic, Tanja |
| Miller, Brian |
| Min, Jihye |
| Mirzaalian, Farshid |
| Mistry, Trishna |
| Moreo, Andrew |
| Moro, Sérgio |
| Morosan, Cristian |
| Moya Sánchez, Daissy Hatblathy |
| Muhammad, Lakhi |
| Nadkarni, Sanjay |
| ndou, valentina |
| Nedra, Ammari |
| Nelson, Robert |
| Nowacki, Marek |
| Nusair, Khaldoon |
| Ochoa-Urrego, Rafael-Leonardo |
| Omuris, Ece |
| Ozdagoglu, Guzin |
| Ozdemir, Ozgur |
| Ozdogan, Osman Nuri |
| Ozen, Ibrahim |
| Özgul Katlav, Eda |
| Ozkul, Emrah |
| Ozturkkal, Ayse |
| Pande, Smriti |
| Papathanassis, Alexis |
| Park, Eunhye Olivia |
| Park, Hyekyung |
| Park, Jeong-Yeol |
| Park, Kunsoon |
| Park, Soyoung |
| Pasamehmetoglu, Ayşın |
| Pereira, Elisabeth T. |
| Pikkemaat, Birgit |
| Pınarbaşı, Fatih |
| Poulaki, Ioulia |
| Raj, Sahil |
| Ramayah, T. |
| Rashid, Nurulizwa |
| Rasoolimanesh, S. Mostafa |
| Razeeth, Suhail |
| Rippee, Robert |
| Rizal, Hamid |
| Rodrigues, Ana Isabel |
| Rodríguez, Rafael |
| Romero, Jaime |
| Ryu, Kisang |
| Salazar, Cristian |
| Saleem, Irfan |
| Samer, Al-shami |
| Saragih, Harriman |
| Sari, Rora |
| Sarmah, Bijoylaxmi |
| Schrier, Thomas |
| Schuckert, Markus |
| Self, Timothy |
| Seow, Ai Na |
| Serman, Zehra |
| Shaheer, Ismail |
| Shaikh, Sadia |
| Sharifabadi, Ali |
| Sharma, Nitasha |
| Shiau, Wen-Lung |
| Shin, Hyejo |
| Shin, Minjung |
| Sigala, Marianna |
| Siles, David |
| Simsek, Guntekin |
| Singh Manhas, Parikshat |
| Singh, A.K. |
| Singh, Archana |
| Singh, Dipendra |
| Singh, Snigdha |
| Soifer, Inna |
| Soliman, Mohammad |
| Song, Hanqun |
| Sop, Serhat Adem |
| Sorrentino, Annarita |
| Sota, Shikha |
| Sottocornola, Gabriele |
| Spinelli, Riccardo |
| Stringam, Betsy |
| Strzelecki, Artur |
| Stylidis, Dimitrios |
| Su, Kuo-Wei |
| Susniene, Dalia |
| Taheri, Babak |
| Tan Wei Han, Garry |
| Tan, Ai Ling |
| Tandon, Abhishek |
| Tanrisevdi, Abdullah |
| Tasci, Asli |
| Tavakoli, Rokhshad |
| Taylor, Jr., Scott |
| Terrier, Lohyd |
| Tham, Aaron |
| Thomas, John |
| Thompson, Robert J. |
| Ting, Hiram |
| tom Dieck, M. Claudia |
| Torres, Arnelyn |
| Tregua, Marco |
| Tsai, Chin-Hsun (Ken) |
| Tsai, Fu-Sheng |
| Turktarhan, Gozde |
| Ur Rehman, Shafique |
| Usakli, Ahmet |
| Vassileva, Bistra |
| Vasudevan, Smitha |
| Vatan, Ahmet |
| Vayghan, Saeed |
| Viñán-Ludeña, Marlon |
| Volchek, Katerina |
| Vu, Quan |
| Wang, Dan |
| Wang, Xingyu |
| Wang, Yao-Chin |
| Wang, Yonggui |
| Webb, Timothy |
| Webster, Craig |
| Weismayer, Christian |
| Wen, Han |
| Wong, Man Ling (Elise) |
| Wong, IpKin |
| Xiao, Ting |
| Xiaolong, Guo |
| Xie, Karen |
| Xiong, Lina |
| Yazici, Senem |
| Yazıcı Ayyıldız, Ahu |
| Ye, Haobin |
| Yoon, Sungsik |
| Yussof, Soffri |
| Zelenka, Josef |
| Zerman, Seza |
| Zhang, Lu |
| Zhang, Lu |
| Zhong, Lina |
| Zhou, Yuan |