Pop-up books. (Genre/Form Term)

Reitz, J.M. ODLIS : online dictionary for library and information science, via WWW, July 24, 2014 (pop-up book: A type of novelty children's book, manufactured as early as the 19th century, containing cut-out illustrations ingeniously designed to spring up in three dimensions from the surface of the page when the book is opened or a tab is pulled, and to fold back down when the page is turned or the tab is pushed in. Synonymous with stand-up book.)

WordWeb online, July 24, 2014 (pop-up book: A book (usually for children) that contains one or more pages such that a three-dimensional structure rises up when a page is opened; also called pop-up)

LCSH (Pop-up books. BT Toy and movable books)

Henny Penny popup story book, 1950.

McCarthy, C.W. Gaudi pop-ups, 2012.