Perfect binding also calls glue binding. The perfect binding is a few page signatures collect together and glue to be a book with spine between front cover and back cover. In common, the spine thickness is more than 3mm.
Perfect binding is a popular binding style for magazines, books and catalogs. We recommend thinner interior paper doing perfect binding. For instance, 80gsm offset paper, 80gsm, 105gsm, 128gsm art paper. To compare with sewn and perfect binding, the glue perfect binding is economical. And the production time is short.
For doing glue perfect binding products, each page should keep 3mm bleed on each edge. Meanwhile, the margin on binding edge more than 12mm is better.