Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [object-making processes and techniques]
6. bookbinding and bookbinding processes and techniques
7. [bookbinding processes and techniques]

Anotations

Scope note:

In bookbinding, the process of sewing and shaping the spine of a sewn textblock, whereby the back edges of the gatherings are splayed outwards from the center of the back, thus shaping a ridge or shoulder on each side; it is done at the same time as or just after rounding.