More and more artists are seeking clever ways to make their albums and paper projects more interesting and three-dimensional. One of the most exciting ways of accomplishing this is by adding interactive elements, such as doors that open and reveal hidden layers, and envelopes and pockets that hold secret text, personal letters, or special photos. Pockets, Pull-outs, and Hiding Places: A Guide to Interactive Altered Books, Memory Art, and Collage teaches the paper engineering techniques for making three dimensional and interactive "paper tools" such as vellum pockets or hinged doors that reveal mini booklets underneath. These tools are applicable to alter book, memory art, and collage artists at any level of experience. The tools are also adjustable enough to be used in any style of work.