Oregon Bookbinding Co. offers three types of binding to suit the needs of each design.
Oversewing - The strongest sewing available where sheets are stitched into the binding edge at almost 1/4".
PUR - The strongest glueing process which is typically known as the "Lay Flat" type of binding. The binding is very durable and flexible which allows the book to lay open naturally.
Smyth - The most common sewing for books printed and collated in the form of signatures.