About: http://webisa.webdatacommons.org/367103696

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	Familiar as we are today with a children???s book market where flaps, pop-ups and all kinds of novelty and interactivity are taken for granted, the lifting flap was an innovative concept in the late 1970s.
http://www.w3.org/ns/prov#wasQuotedFrom	kirkusreviews.com