The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not. In 2019, a total of 74 papers were published in the journal, with a median time to first decision of 31.5 days and a median time from submission to publication of 72.5 days. The editors would like to express their sincere gratitude to the following reviewers for their generous contribution in 2019:
| Adamatzky, Andrew | Lee, Bruce P. |
| Akbarzadeh, Masoud | Li, Qiaochu |
| Almeida, Henrique | Liauzun, Cedric |
| Alves, Fabio | Lieberzeit, Peter A. |
| Ameloot, Marcel | Liu, Cheng-Yang |
| Arena, Maurizio | Liu, Haijun |
| Asano, Yuki | Longden, Kit |
| Ashley, Jon | Losada-Perez, Patricia |
| Atrián-Blasco, Elena | Malachowski, Jerzy |
| Ayres, Phil | Mankin, Richard W. |
| Badarnah, Lidia | Maroto-Gómez, Marcos |
| Baena, Francisco Manuel | Marquardt, Drew |
| Bahri, Mitra | Marrazzo, Pasquale |
| Bajpai, Ankur | McHenry, Matthew |
| Banaś, Michał | Mechrez, Guy |
| Barnea, Ofer | Meghdari, Ali |
| Bax, Noortje A. M. | Meldal, Morten |
| Becerra Permuy, Jose Antonio | Mendelson, Leah |
| Belitsky, Jason M. | Michaud, Veronique |
| Bellardita, Carmelo | Miller, Laura |
| Benaouicha, Mustapha | Mishina, Yuji |
| Benetatos, Panayotis | Moosavian, Amin |
| Benvenuti, Davide | Moutsopoulou, Amalia |
| Berns, Karsten | Myers, Damian E. |
| Beysens, Daniel | Nelson-Cheeseman, Brittany |
| Bhasin, Devesh | Nicolas, Cyril |
| Bhounsule, Pranav A. | Niiyama, Ryuma |
| Birkedal, Henrik | Niu, Ran |
| Bogach, Natalia | Oh, Dongyeop X. |
| Bortot, Eliana | Ostasevicius, Vytautas |
| Botez, R. M. | Ozkan-Aydin, Yasemin |
| Butenkov, Sergey A. | Pellerin, Christian |
| Canfield, Stephen | Petrović, Milica |
| Caramella, Carla | Pettit, Thomas |
| Carl, Timo | Potemkin, D. I. |
| Carrasco, Sergio | Prilutsky, Boris |
| Chayaamor-Heil, Natasha | Qian, Jin-yuan |
| Chen, Bilin | Qiaorui, Si |
| Cheng, I-Fang | Regan, Fiona |
| Cheung, Barry | Rezaeiha, Abdolrahim |
| Cho, Namjoon | Ribeiro, Adriana Santos |
| Clark, Christopher J. | Rossi, Andrea |
| Compain, Philippe | Roy Chowdhury, Sandipan |
| Conti, Daniela | Šafarič, Riko |
| Cvrček, Ladislav | Sain, Sunanda |
| De Gaspari, Alessandro | Samoylova, Tatiana I. |
| De Stefano, Luca | Santra, Swadeshmukul |
| DeLaurier, April | Sarbu, Andrei |
| Delbianco, Martina | Sarna, Tadeusz |
| Deravi, Leila | Sauret, Emilie |
| Doctor, Khoshrav | Schuster, Bernhard |
| Duchi, Serena | Sek, Slawomir |
| Elahi, Hassan | Seriani, Stefano |
| Ellison, Michael | Shamonin, Mikhail |
| Engelbrecht, Andries | Shamshirband, Sh |
| Ergin, F. Gökhan | Shibahara, Makoto |
| Faiña, Andres | Shu, Qingyan |
| Farinola, Gianluca | Silberstein, Meredtih |
| Fazal, Zeeshan | Siniscalchi, Sabato Marco |
| Feldman, Dale | Sitti, Metin |
| Fernandes, Carlos M. | Socha, Jake |
| Flammang, Brooke | Song, Juha |
| Folio, David | Sprecher, Aaron |
| Gallo, Mauro | Sprynskyy, Myroslav |
| Gavazzo, Paola | Stepanov, Gennady V. |
| Gavioli, Luca | Stokke, Bjørn Torger |
| Gräbner, Daniel | Strube, Oliver |
| Gradov, Oleg V. | Su, Tsung-chow |
| Green, Melissa | Sullivan, Timothy |
| Grobman, Yasha | Suzuki, Aussie |
| Habib, Maki | Takagi, Daisuke |
| Hammond, Frank L. | Takuma, Takashi |
| Hanaor, Dorian A. H. | Tangorra, James Louis |
| Hanke, Wolf | Tesar, Vaclav |
| Hariri, Hassan Hussein | Tsuboko, Yusuke |
| Hempel, Ute | Turco, Antonio |
| Hes, Dominique | Valiev, A. R. |
| Hess, Dennis | Van Caam, Arjan |
| Higginson, Cody James | Vijayavenkataraman, Sanjairaj |
| Hilborn, Jöns | Vincent, Julian |
| Holten-Andersen, Niels | Vukomanovič, Mariija |
| Hoover, Alex | Wada, Tohru |
| Humphries, Stuart | Waite, J. Herbert |
| Ijspeert, Auke | Wang, Qiming |
| Iop, Laura | Wang, Hongjun |
| Isaev, Abdulgalim | Wang, Xiang |
| Ishikawa, Takuji | Warburton, Natalie |
| Jaecques, Siegfried | Webb, Barbara |
| Ji, Ai-hong | Wei, Qi |
| Jurman, Giuseppe | Weihs, Daniel |
| Kadapa, Chennakesava | Williams, John |
| Kakugo, Akira | Wu, Jie |
| Kapadia, Apoorva | Wysokowski, Marcin |
| Kasem, Haytam | Yakout, Mostafa |
| Khan, Muhammad Ahmed | Yamanobe, Natsuki |
| Kim, Hwa Soo | Yang, Yi-Yuan |
| Kim, Donghyun | Yousefi, Kianoosh |
| Klimek, Katarzyna | Zari, Maibritt |
| Komarova, Svetlana | Zboinska, Malgorzata A. |
| Körner, Axel | Zhang, Jiaying |
| Kouziokas, Georgios N. | Zhang, Haochun |
| Królczyk, Grzegorz | Zhang, Yan |
| Lamas, María Isabel | Zhu, Kui |
| Latif, Tahmid | Zuppinger, Christian |
| Lee, Hyoungsoon |
© 2020 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).