John Menzies is Professor of Earth Sciences and Geography at Brock University, Canada. He obtained degrees from the University of Aberdeen (BSc) and the University of Edinburgh (PhD). His main areas of research and expertise lie in glacial geomorphology and sedimentology with a special interest in the subglacial environment and MSGLs. He has established a micromorphology lab at Brock University and, over the past decades, has developed major research interests in glacial micromorphology/microsedimentology. He is the author of numerous scientific journal papers and of several books including the recent Past Glacial Environments (2018, Elsevier, co-edited with Prof Em. Jaap van der Meer). Prof Menzies has also co-hosted MSc training courses for nine International Workshops for the Micromorphology of Glacial Sediments for PhD students and Postdocs and Faculty. Professor Jaap JM van der Meer , MSc, PhD is Professor emeritus of Physical Geography at Queen Mary, University of London. He obtained a BSc, MSc and PhD at the University of Amsterdam where he was a Senior Lecturer until 2000, when he moved to London. He retired in 2011.Glacial processes and resulting landforms and sediments were the focus of his research. On the general level he studied sediment transfer and (temporal) storage in the glacial system: from the ice divide to the shelf edge. More specifically, there are two clear elements in his studies: the first one is the study of glacial sediments especially in thin sections and the second one is the study of dynamic structures, e.g. push moraines or drumlins. His research is embedded in an international network, encompassing collaboration with colleagues from Western European, North and South American countries and Australia and New Zealand and fieldwork ranging from the Arctic to the Antarctic. He set up the Centre for Micromorphology University of London, internationally a unique research facility to study glacial sediments at all microscales.