According to one aspect, the invention relates to a method of stacking covers for the fabrication of booklets. Each cover includes two cover sheets and an interconnecting spine. Applied to the inner surface of the spine is a binding device that includes a binding agent. The covers are mutually stacked...http://www.google.de/patents/US6299402?utm_source=gb-gplus-sharePatent US6299402 - Cover intended for the fabrication of a booklet, a method of handling such covers, and a method of fabricating such booklets
