Rigorous peer-review is the corner-stone of high-quality academic publishing. The editorial team greatly appreciates the reviewers who contributed their knowledge and expertise to the journal’s editorial process over the past 12 months. In 2018, a total of 40 papers were published in the journal, with a median time to first decision of 13 days and a median time to publication of 47 days. The editors would like to express their sincere gratitude to the following reviewers for their cooperation and dedication in 2018:
| Almgren, Khaled | Miao, Yiming |
| Aloqaily, Moayad | Minervini, Pasquale |
| Ariyur, Kartik | Modoni, Gianfranco |
| Baker, Thar | Mori, Ryota |
| Bauberger, Stefan | Moroni, Davide |
| Baum, Seth | Mousas, Christos |
| Beganovic, Nejra | Mozgovoy, Maxim |
| Behzadan, Vahid | Murtagh, Fionn |
| Benninger, Daniel | Necula, Sabina |
| Bernardino, Jorge | Nguyen, Binh P. |
| Bölöni, Ladislau | Ojha, Varun Kumar |
| Boussaid, Omar | Oliveira, Teresa A. |
| Bujnowski, Adam | Ovalle, María Antonia |
| Caleffi, Marcello | Pagge, Jenny |
| Cao, Hung | Paiva, Sara |
| Carbonell Carrera, Carlos | Pang, Jun |
| Cerro, Gianni | Pecori, Riccardo |
| Chen, Liang-Bi | Peimankar, Abdolrahman |
| Corsar, David | Perikos, Isidoros |
| Cotfas, Liviu-Adrian | Petrosanu, Dana-Mihaela |
| Cottafava, Dario | Pozza, Riccardo |
| Daniel, Ben Kei | Rajaraman, Sivaramakrishnan |
| Demertzis, Konstantinos | Reis, Catarina I. |
| Dreżewski, Rafał | Relich, Marcin |
| Dubey, Harishchandra | Rinaldi, Stefano |
| Estêvão, João M.C. | Rodríguez, Alfonso |
| Etemad, Katayoon | Rosenbaum, Howard |
| Fabbrocino, Giovanni | Rybarczyk, Yves |
| Fiorentino, Michele | Salazar, Addisson |
| Fraga-Lamas, Paula | Sanwar Hosen, A. S. M. |
| Gao, Longxiang | Savaglio, Claudio |
| García-Díaz, Pilar | Schumacher, Jens |
| García-Gonzalo, Esperanza | Sicilia, Miguel-Angel |
| Garg, Harish | Smeaton, Alan |
| Gatteschi, Valentina | So, Chaehan |
| Geng, Ruili | Song, Jeungeun |
| Gibson, David | Sotala, Kaj |
| González Pérez, Isaías | Sperlì, Giancarlo |
| Grivokostopoulou, Foteini | Štajduhar, Ivan |
| Guo, Xinfei | Straub, Jeremy |
| Hao, Yixue | Su, Ming-Shou |
| Hedayatifar, Leila | Sun, Ziheng |
| Hemmati, Farzad | Taffese, Woubishet Zewdu |
| Hölbl, Marko | Tamura, Hiroki |
| Huh, Jun-Ho Huh | Tang, Wenwu |
| Hussain, Zahir | Teisseire, Maguelonne |
| Infantino, Ignazio | Theron, Roberto |
| Iuppa, Claudio | Tomaszuk, Dominik |
| Jajoo, Aarti | Tonacci, Alessandro |
| Ji, Hao | Tramontana, Emiliano |
| Ji, Shuiwang | Trovati, Marcello |
| Johansen, Mikkel Willum | Tsinos, Christos |
| Kaabouch, Naima | Tsiropoulou, Eirini Eleni |
| Kanavos, Andreas | Turchin, Alexey |
| Kang, James | Ullah, AMM Sharif |
| Karakatič, Sašo | Ungureanu, Florina |
| Koerich, Alessandro | Vahedian, Amin |
| Kotsiantis, Sotiris | Vaiciukynas, Evaldas |
| Kouziokas, Georgios N. | Van Den Noort, Maurits |
| Krasoulis, Agamemnon | Van Leeuwen, Tessa M. |
| Krygier, Jaroslaw | Vinagre, Eugénia |
| Le, Hieu Hanh | Vlad, Diaconita |
| Lemnaru, Camelia | Vlahu-Gjorgievska, Elena |
| Li, Xiang | Wang, Cheng |
| Lian, Wenzhao | Wang, Jiayin |
| Lin, Feng-Cheng | Wang, Junye |
| Livieris, Ioannis | Weber, Felix |
| Long, Xi | Wielgosz, Maciej |
| Łopatka, Jerzy | Xu, Quanqing |
| Maestre, Jorge | Yang, Chaowei |
| Markakis, Evangelos K. | Yu, Yang |
| Martino, Luca | Yue, Jing |
| Mašek, Pavel | Zhang, Ce |
| Masłowski, Andrzej | Zhang, Le |
| Mateos, Cristian | Zhang, Yudong |
| Mathapathi, Shivakumar | Zhao, Dongfang |
| Mavragani, Amaryllis | Zhe, Li |
| Menon, Varun G. | Ziemba, Paweł |
© 2019 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/).