HARDCOVER BOOK 1-4 color printing inside:105gsm,128gsm,157gsm and others as required cover: soft cover or hardcover HARDCOVER BOOK PRINTING1-4 color printing Material: recyclable coated paper like art paper (128,157,200,250,300,350gsm), light weight coated paper, wooddfree paper, cover can be soft or hard as you like Binding: glue, perfect binding, case binding, flexi bound, wire-o stitching ...