About: http://webisa.webdatacommons.org/2405032

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	John is a frequent speaker and panelist at MacWorld and other trade shows and has taught many Mac classes for Apple.
http://www.w3.org/ns/prov#wasQuotedFrom	wiley.com