IJAHP: Mu/Welcome to our first issue in 2020! International Journal of the Analytic Hierarchy Process 1 Vol. 12 Issue 1 2020 ISSN 1936-6744 https://doi.org/10.13033/ijahp.v12i1.760 Welcome to our first issue in 2020! Dear IJAHP Readers: Welcome to our first issue in 2020! This volume marks our twelfth consecutive year of publication. While changes in the world were expected in this time, it has only been during the past few weeks that we have experienced social disruptive change on a global scale. The health crisis caused by COVID-19 is unprecedented and caught all of us by surprise. IJAHP expresses its solidarity with all of the people whose lives are being affected by the pandemic and express our wish for all to emerge from this crisis wiser and with a renewed faith in humanity. While this drama has unfolded, this issue was being prepared for production, thanks to the hard work of our IJAHP team. Our regular articles deal with important multi-criteria decision-making applications in different disciplines and countries. However, there is also a Special Topics section in this issue that is based on studies presented at MCDM 2019 in Istanbul, Turkey. Dr. Ilker Topcu, Istanbul Technical University, and Dr. Ozay Ozaydin, Dogus University, graciously accepted the role of guest editors for this section, and they will introduce these papers in our guest preface. We have also had the opportunity to talk to Dr. Leandro Pecchia, a decision making expert from the University of Warwick, about his thoughts on the role of the decision- making community during the current pandemic. You can read his thought-provoking opinions in the News and Events section. Also, in this issue, Dr. Kirti Peniwati discusses, in our Essay section, the role of AHP/ANP in striving for agility in volatile, uncertain, complex and ambiguous (VUCA) environments. This is certainly an important topic of discussion for the times in which we live. In conclusion, this is an interesting issue to read and here at IJAHP we wish for all of our readers and the AHP/ANP community at large to remain safe and healthy! Enrique Mu, PhD IJAHP, Editor-in-Chief