The 16th International Conference on Webometrics, Informetrics, and Scientometrics (WIS) and the 21st COLLNET Meeting, 2022 which was scheduled to be held from 10 to 12 November 2022 at Chulalongkorn University, Bangkok, Thailand was organized after a two-year break, due to the Corona restrictions, by COLLNET in association with the Society for Library Professionals (SLP) and Asian Chapter, Special Libraries Association (SLA) and Chulalongkorn University, Bangkok, Thailand for the professional growth of the library and Information Science professionals. The broad focus of the conference was on collaboration and communication in science and technology; scientometric research on Covid19; techniques for collaboration studies; informatics law and distributions; mathematical models of communication and collaboration; quantitative analysis of s&t innovations; evaluation indicators; collaboration in science and technology from both quantitative and qualitative points of view; bibliographic control bibliometric research data analysis and data mining; technology & innovations in libraries and their impact on measurement on learning, research and users technology transfer and innovation in library management through metrics. The aim of the conference was therefore to contribute to evidence-based knowledge on scientific research and practices, which in turn can contribute to institutional, regional, national and international policy-making in the field of research and innovation. This event was part of the successful COLLNET conference series (www.collnet.de). Previous COLLNET conferences were held in Berlin (Germany) in 2000, New Delhi (India) in 2001, Sydney (Australia) in 2001, Beijing (China) in 2003, Roorkee (India) in 2004, Stockholm (Sweden) in 2005, Nancy (France) in 2006, New Delhi (India) in 2007, Berlin (Germany) in 2008, Dalian (China) in 2009, Mysore (India) in 2010, Istanbul (Turkey) in 2011, Seoul (South Korea) in 2012, Tartu (Estonia) in 2013, Ilmenau (Germany) in 2014, Delhi (India) in 2015, Nancy (France) in 2016, Kent (UK) in 2017, Macau 2018 and Dalian (China) 2019.