Cost-effective, durable and rather attractive, our A4 Perfect Bound books are a great way to give your documents an expensive look and feel.With Perfect or PUR Binding your book is split into sections of folded pages. The section spines are trimmed off and ‘roughed up’ so that they bond more easily with glue. All the sections are then collated together and glued to a wrap around cover. So there’s no spiral binding or obvious stitching, just a smooth, sophisticated finish.