noun
A picture book with three-dimensional paper mechanisms that rise when pages are opened. Often used for children's books.
See also: しかけ絵本
子どもにポップアップ絵本を買ってあげた。
I bought a pop-up book for my child.
しかけ絵本 is a broader term for interactive or mechanical picture books, including pop-ups, flaps, and other movable parts. ポップアップ絵本 specifically refers to books with pop-up elements.
Compound of ポップアップ (from English 'pop-up') and 絵本 (picture book).