Acknowledgments for Ron Fricke (2020 and Jan. 2021): Arturo Acero P., Henry Agudelo-Zamora, Alfonso Aguilar-Perera, Hugo Aguirre, Harald Ahnelt, K. V. Akhilesh, Armando Almeida, Ricardo Alvarez-León, Pedro Amorim, Marcelo Andrade, Arturo Angulo, Leandro Araujo Argolo, Juan Carlos Arronte, Juan Miguel Artigas Azas, Muthukumarasamy Arunachalam, Claudio Baigun, Nicolas Bailly, Francisco Baldó, Arcady Balushkin, Rafael Bañon Díaz, Clyde Barbour, Filippo Bargnesi, Esra Bayçelebi, Edgar Eduardo Becerril-García, Yusuf Bektaş, Ricardo Benine, Ricardo Betancour, Maria Bichuette, Alessandro Bifi, José Birindelli, Pedro Bittencourt, Renan Borges dos Reis, José Carlos Brito, Ralf Britz, Heiko Brunken, Ivana Buj, Christian Capapé, Emily Capuli, Tiago Pinto Carvalho, Romain Causse, Hasan Cerim, Ning Labbish Chao, Junior Chuctaya, Patrick Ciccotto, Erdogan Çiçek, Kendall Clements, Topiltzin Contreras-MacBeath, Courtney Cox, Gabriel Cruz Ruíz, Fernando Dagosta, Neelesh Dahanukar, Chang-Feng Dai, Caio Dallevo-Gomes, Gabriel Deprá, Fabio Di Dario, Ignacio Doadrio, Omar Domínguez-Domínguez, Carlos DoNascimiento, Du Jianguo, Yury Dyldin, Siegfried Ehrich, Fernando Elloriaga-Verplancken, Hiromitsu Endo, Marco Endruweit, Deniz Ergüden, Maria Doris Escobar L., Hamid Esmaeili, Héctor Espinosa, Sergei Evseenko, Dario Faustino-Fuster, Juliano Ferrer, Daniel Figueroa, Lloyd Findley, Matthew Ford, Thomas Fraser, João Eduardo Pereira de Freitas, Augusto Frota, Dario Faustino Fuster, Cyril Gallot, Carolina Galván-Tirado, Julio Cesar Garavello, Mehdi Ghanbarifardi, Caio Gomes, Weferson da Graça, Steven Grant, Ana Fabiola Guzmán, Lorenzo Halasan, Gustavo Hallwass, Mohamed Eusuf Hasan, Philip Hastings, Harutaka Hata, Majid Hesni, Wen-Chien Huang, Samuel Iglésias, Muhammad Iqbal, Isaäc Isbrücker, Yukio Iwatsuki, Laith Jawad, Howard Jelks, Jeff Johnson, Wilbert Kadye, Thodoros Kampouris, K. Karuppasamy, Axel Katz, Cüneyt Kaya, Seishi Kimura, Jeff Kinch, Periklis Kleitou, Keita Koeda, Stefan Koerber, Matthew Kolmann, Laishram Kosygin, Philippe Koubbi, Aneesh Kumar, Taiga Kunishima, Enrique Laaz Moncayo, Thomas Lachenal, Felipe Lamarca, Anton Lamboj, Helen Larson, Sébastien Lavoué, Omar Mejía, Mario La Mesa, Djiman Lederoun, Boris Levin, Fan Li, Thomas Litz, Philip Lobel, Douglas Lopes, Hernán López-Fernández, Milton Love, Nathan Lujan, Diego Luzzatto, Luiz Malabarba, Katemo Manda, Alexandre Marceniuk, Stefano Mariani, Pablo Martín-Sosa, Mayler Martins, Wilfredo Matamoros, Mizuki Matsunuma, George Mattox, Bruno Melo, Naercio Menezes, Ernst Mikschi, Michael Mincarone, Rafael Miranda, Juan Marcos Mirande, Anil Mohapatra, Glenn Moore, Luis Fernando del Moral Flores, David Morgan, Clóvis da Motta-Neto, Béla Nagy, Muddula Krishna Naranji, Mikhail Nazarkin, Heok Hee Ng, Jørgen Nielsen, Chrysoula Ntislidou, Makoto Okamoto, Renildo Ribeiro de Oliveira, Alexey Orlov, Luz Orrego, Felipe Ottoni, Bayram Öztürk, Lawrence Page, Kodeeswaran Paramasivam, Annam Pavan, Edson Pereira, Tiago Pessali, Fávia Petean, Rohan Pethiyagoda, Kyle Piller, John Pogonoski, Gianluca Polgar, Jürgen Pollerspöck, Stuart Poss, Kante Prasad, Artem Prokofiev, Francisco Provenzano, Patrice Pruvost, Peter Psomadakis, Praveen Raj, Francisco Reiner, Roberto Esser dos Reis, Vinícius Reis, Ross Robertson, V. I. Romanov, Ricardo Rosa, Gorgonio Ruiz-Campos, Barry Russell, Ana Sabatés, Shilpi Saha, Sandhya Sakumaran, Luisa Sarmento-Soares, Christopher Scharpf, Erwin Schraml, Hiroshi Senou, Bernard Séret, Ilia Shakhovskoy, Bungdon Shangningam, Boris Sheiko, Vladimir Shelekhov, Brian Sidlauskas, Cárlison Silva-Oliveira, Tamaki Shimose, David Smith, Abilio Soares-Gomes, Ronaldo Sousa, Carla Sousa-Santos, Hiranya Sudasinghe, Sho Tanaka, Kisekelwa Tchalondawa, Tulio Teixeira, Eric Thomas, Andrea Thomaz, Francesco Tiralongo, Amira Touil, Franz Uiblein, Nguyen Quan Van, Ekaterina Vasil'eva, Diego Vaz, Frans Vermeulen, Sarah Viana, Thomas Vigliotta, Elena Voronina, Nathan Vranken, Emmanuel Vrewen, Maximilian Wagner, Gina Walsh, Simon Weigmann, Peter Wirtz, Baran Yoğurtçuoğlu, Henry Zamora, Angela Zanata, Jouke van de Zee, E Zhang, Yahui Zhao, Wei Zhou, Mikhail Zhukov, Gerardo Zúñiga.
Acknowledgments for Richard van der Laan (2020): Felipe Abranches, Emmanuel Abwe, Erik Åhlander, Henry Agudelo-Zamora, Carlos Ardila Rodríguez, Muthukumarasamy Arunachalam, Nicolas Bailly, Arcady Balushkin, Yusuf Bektas, Ricardo Betancur, Pedro Bragança, José Carlos Brito, Marko Ćaleta, Pablo Calviño, David Černý, Brian Coad, Sebastián Cona, Kevin Conway, Neelesh Dahanukar, Fabio di Dario, Vahe Demirjian, Gaël Denys, Eddy Derijst, Omar Domínguez-Domínguez, Laura Donin, Dario Faustino-Fuster, Antonia Ford, Acacio Freitas, Jörg Freyhof, Dan Fromm, Augusto Frota, Babette van Gool, Harutaka Hata, Elaine Heemstra, Hans Ho, Jean Huber, Taiki Ito, Praveenraj Jayasimhan, Axel Katz, Seishi Kimura, Steen Knudsen, Paul van der Laan, Francisco Langeani, Sébastien Lavoué, Mao-Ying Lee, Eliseo Lescún, Thomas Litz, Thiago Silva Loboda, Diego Luzzatto, James Maclaine, Katemo Manda, Mizuki Matsunuma, Madhava Meegaskumbura, Bruno Melo, Michal Mikšík, Guido Miranda, Marcos Mirande, Anil Mohapatra, Daniel Mokodongan, Peter Møller, Robert Myers, Dirk Neumann, Claudio Oliveira, Renildo de Oliveira, Larry Page, Murilo Pastana, Edson Pereira, Flávia Petean, Dennis Polack, Jayasimhan Praveenraj, Divya Radhakrishnan, Filipe Rangel-Pereira, Roberto Reis, Ross Robertson, Uwe Römer, Mark Sabaj, David de Santana, Mudjie Santos, Sérgio Santos, Luisa Sarmento-Soares, Chris Scharpf, Erwin Schraml, Hiroshi Senou, Bungdon Shangningam, Priscilla Caroline Silva, Dave Smith, Bill Smith-Vaniz, Gabe Somarriba, Hiranya Sudasinghe, John Sullivan, Milton Tan, Kisekelwa Tchalondawa, Andrea Thomaz, Tom Trnski, Massimiliano Virgilio, Olga Voskoboinikova, Nathan Vranken, Emmanuel Vreven, Simon Weigmann, Jeff Williams, Lei Yang, Jouke van der Zee, W. Zhou, Dan Zimberlin and Elsbeth Zwart.
Acknowledgments for Bill Eschmeyer (2020): Dave Catania, Mikael Karlsson, Richard van der Laan, John McCosker, Michael Miksik, Dirk Neumann, Rafaela Ota, Larry Page.