Teaching in a digital age – second edition: by A. W. Bates, Tony Bates Associates Ltd, Vancouver, B.C 2019, ISBN 978-0-9952692-1-7, (ebook), ISBN 978-0-9952692-0-0. Also available as Open Access: Teaching in a Digital Age – The Open Textbook Project provides flexible and affordable access to higher education resources (opentextbc.ca). (3rd July 2022)