(from the article `bookbinding`) ...or as four 16-page sections). End sheets (or papers) may be attached to the first and last sections of the book, and systems are designed to sew ... Found on http://www.britannica.com/eb/a-z/p/43
A method of binding where the edge of loose sheets are dipped in adhesive and put in a cover, often in cheap paperbacks.
Found on http://www.encyclo.co.uk/local/20208
A common method of binding paperback books. After the printed sections having been collated, the spines will be ground off and the cover glued on. The appearance is of a flat spine on the end of the book such as a paperback book. Often used for larger magazines and publications where saddle stitching is impractical. Found on http://www.encyclo.co.uk/local/20829
See also ADHESIVE BINDING (13) Proprietary method of holding pages of a book together with glue, using no stitching or sewing
Found on http://www.ifla.org/VII/s30/pub/mg1.htm#5