Pop-Up Peekaboo! MermaidBy: DK Series: Pop Up Peekaboo! An interactive pop up book that inspires hands on learning with the help of magical mermaid friends! Tactile elements and delightful imagery will encourage the development of motor skills and early learning. Bold, brightly coloured pictures, lift the flap pages and entertaining rhymes, Pop up Peekaboo: Mermaid provides lots of opportunities for parent and child interaction and hours of enchanting underwater mermaid fun.