Esri, the developer of ArcGIS Pro, has created a YouTube channel for users to learn the software. Not only tutorials of ArcGIS Pro, this channel has various contents on ArcGIS such as Smart Mapping, Story Maps, and more. Beside watching videos, Esri also provides step-by-step tutorial online.
Simple map creating guides for grass-root organizations and media (in Chinese):
Dr. Leung Kai Chi who is teaching infographics in School of Journalism and Communication in The Chinese University of Hong Kong has written the following guides for newbies in creating maps (in Chinese):