Movable books provide interesting challenges for digitization and user interfaces design. We report in this paper some preliminary results in the building of a 3D visualization workbench for such books. Categories and Subject Descriptors H.5.2 [Information Interfaces and Presentation] : User Interfaces - Interaction styles, Prototyping. General Terms Design, Experimentation. Keywords Digital Library, 3D Interaction, Virtual Reality. Motivation and background Movable books have a long and fascinating history that can be traced back to the middle ages [1]. They were at first designed for didactic purposes or as paper-based computational tools. Since the 19th century, movable books are mostly produced for children recreation and use a never-ending variety of animation techniques. In this paper, we focus on the former category for an on-going experiment on the digitization of scientific antiquarian collections: the Conservatoire Numérique des Arts et Métiers project (http://cnum.cnam.fr...