The 3rd edition of the World Logic Day, January 14, 2021, was a great success with nearly 100 celebrations taking place all around the world. These celebrations were connected by a Welcome Ceremony, in which presidents of logical associations and logicians from all over the world participated. Participants (among others): Ø Jean-Yves Beziau (Creator of the World Logic Day, Editor-in-Chief of Logica Universalis), Ø Maria Edileuza Fontenele Reis (former UNESCO Ambassador of Brazil), Ø Benedikt Löwe (CIPSH/UNESCO - coordinator of the World Logic Day), Ø Jan Wolenski (talking about Alfred Tarski), Ø Daniele Mundici (talking about Kurt Gödel), Ø Luca Scarantino (President of the FISP -International Federation of Philosophical Societies), Ø Gerhard Heinzmann (President of AIPS, International Academy of Philosophy of Science), Ø Jacek Malinowski (Editor-in-Chief of Studia Logica), Ø Otávio Bueno (Editor-in-Chief of Synthese), Ø Ivan Varzinczak (Winner of the 1st World Logic Prizes Contest) Visit http://www.logica-universalis.org/wld3 for all information. The ceremony was streamed and recorded. To watch the recording, visit the YouTube - channel: Universal Logic Project - https://www.youtube.com/channel/UCPS1c5ApuwjuCV9UjXHUN4w On this channel, you can also watch: Ø a video by Maria Edileuza Fontenele Reis, the Brazilian Ambassador at UNESCO, about the successful submission of the proposal to the UNESCO executive committee and general assembly, Ø a video by Jean-Yves Beziau, explaining why he decided to create the World Logic Day, Ø a video by Ivan Varzinczak about the World Logic Prizes Contest. -- Antje Herbst Associate Editor Mathematics Journals Springer Nature Tiergartenstraße 17, 69121 Heidelberg, Germany T +49 62214878984 antje.herbst@springernature.com<mailto:antje.herbst@springernature.com> www.springernature.com<http://www.springernature.com/> -- Springer Nature is a leading research, educational and professional publisher, providing quality content to our communities through a range of innovative platforms, products and services. Every day, around the globe, our imprints, books, journals and resources reach millions of people - helping researchers, students, teachers & professionals to discover, learn and achieve. -- Branch of Springer-Verlag GmbH, Heidelberger Platz 3, 14197 Berlin, Germany Registered Office: Berlin / Amtsgericht Berlin-Charlottenburg, HRB 91881 B Directors: Martin Mos, Dr. Ulrich Vest, Dr. Niels Peter Thomas