About: http://webisa.webdatacommons.org/422163903

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As you say, most people who are 'famous' and make a good living at a craft earn most of their money by running courses and writing books.
http://www.w3.org/ns/prov#wasQuotedFrom	downsizer.net