Coming out a full year before Enzo Mari’s Autoprogettazione, Papanek and Hennessey’s book shared with readers « How to build and where to buy lightweight furniture that folds, inflates, knocks down, stacks, or is disposable and can be recycled, » and was loaded with diagrams of DIY plans to that effect. Some of the plans encouraged readers to explore the structural properties of cardboard, others looked at the use of non-furniture materials in furniture. There were plans for plywood furniture that could be constructed without fasteners and some using every last bit of a single sheet of plywood. And clever double-duty items, like this beanbag chair that could be used, while moving house, to protect delicates. Some plans focused on existing products, and either suggested how to make your own or revealed sources for less expensive DIY kits. For the most part, the designs are still relevant today.