Blue Ribbon Books was a notable American publishing house established in 1930, known for its innovative production of children’s books featuring movable elements, particularly pop-ups.
Lentz provided not only the artwork but also the engineering behind the intricate pop-up mechanisms, making these books highly sought after by collectors.
Some of the most famous titles produced by Blue Ribbon include *The "Pop-Up" Pinocchio* (1932) and *The "Pop-Up" Cinderella* (1933), both featuring detailed illustrations and interactive paper mechanics.
[1] Blue Ribbon Books also made a significant impact with their **Disney-themed pop-up books**, which helped bring classic Disney stories to life through interactive illustrations.
[2] Blue Ribbon Books' pop-up editions remain highly collectible due to their historical significance and craftsmanship, marking a key moment in the development of children's interactive literature in the United States.